diff --git a/mass_mailing_custom_unsubscribe/data/mail_unsubscription_reason.xml b/mass_mailing_custom_unsubscribe/data/mail_unsubscription_reason.xml
index 24a6eda..aa78554 100644
--- a/mass_mailing_custom_unsubscribe/data/mail_unsubscription_reason.xml
+++ b/mass_mailing_custom_unsubscribe/data/mail_unsubscription_reason.xml
@@ -1,39 +1,38 @@
-<?xml version="1.0" encoding="utf-8"?>
+<?xml version="1.0" encoding="utf-8" ?>
 <!-- © 2016 Jairo Llopis <jairo.llopis@tecnativa.com>
      License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl). -->
-
 <data noupdate="1">
 
-    <record id="reason_not_interested"
-            model="mail.unsubscription.reason"
-            forcecreate="False">
+    <record
+        id="reason_not_interested"
+        model="mail.unsubscription.reason"
+        forcecreate="False"
+    >
         <field name="name">I'm not interested</field>
         <field name="sequence">10</field>
-        <field name="details_required" eval="False"/>
+        <field name="details_required" eval="False" />
     </record>
 
-    <record id="reason_not_requested"
-            model="mail.unsubscription.reason"
-            forcecreate="False">
+    <record
+        id="reason_not_requested"
+        model="mail.unsubscription.reason"
+        forcecreate="False"
+    >
         <field name="name">I did not request this</field>
         <field name="sequence">20</field>
-        <field name="details_required" eval="False"/>
+        <field name="details_required" eval="False" />
     </record>
 
-    <record id="reason_too_many"
-            model="mail.unsubscription.reason"
-            forcecreate="False">
+    <record id="reason_too_many" model="mail.unsubscription.reason" forcecreate="False">
         <field name="name">I get too many emails</field>
         <field name="sequence">30</field>
-        <field name="details_required" eval="False"/>
+        <field name="details_required" eval="False" />
     </record>
 
-    <record id="reason_other"
-            model="mail.unsubscription.reason"
-            forcecreate="False">
+    <record id="reason_other" model="mail.unsubscription.reason" forcecreate="False">
         <field name="name">Other reason</field>
         <field name="sequence">100</field>
-        <field name="details_required" eval="True"/>
+        <field name="details_required" eval="True" />
     </record>
 
 </data>
diff --git a/mass_mailing_custom_unsubscribe/demo/assets.xml b/mass_mailing_custom_unsubscribe/demo/assets.xml
index ca828bc..86743fd 100644
--- a/mass_mailing_custom_unsubscribe/demo/assets.xml
+++ b/mass_mailing_custom_unsubscribe/demo/assets.xml
@@ -1,25 +1,26 @@
-<?xml version="1.0" encoding="utf-8"?>
+<?xml version="1.0" encoding="utf-8" ?>
 <!-- Copyright 2016 Jairo Llopis <jairo.llopis@tecnativa.com>
      License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl). -->
-
 <odoo>
 
-<template id="assets_frontend_demo"
-          inherit_id="web.assets_frontend">
+<template id="assets_frontend_demo" inherit_id="web.assets_frontend">
     <xpath expr=".">
-        <script type="text/javascript"
-                src="/mass_mailing_custom_unsubscribe/static/src/js/contact.tour.js"/>
-        <script type="text/javascript"
-                src="/mass_mailing_custom_unsubscribe/static/src/js/partner.tour.js"/>
+        <script
+                type="text/javascript"
+                src="/mass_mailing_custom_unsubscribe/static/src/js/contact.tour.js"
+            />
+        <script
+                type="text/javascript"
+                src="/mass_mailing_custom_unsubscribe/static/src/js/partner.tour.js"
+            />
     </xpath>
 </template>
 
 <!--This is set here to make tours work-->
-<template id="mass_mailing_custom_unsubscribe.layout"
-          inherit_id="mass_mailing.layout">
+<template id="mass_mailing_custom_unsubscribe.layout" inherit_id="mass_mailing.layout">
     <xpath expr="//t[@t-set='head']" position="inside">
-        <t t-call-assets="web_editor.assets_wysiwyg"/>
-        <t t-call-assets="web.assets_frontend"/>
+        <t t-call-assets="web_editor.assets_wysiwyg" />
+        <t t-call-assets="web.assets_frontend" />
     </xpath>
 </template>
 
diff --git a/mass_mailing_custom_unsubscribe/static/src/js/contact.tour.js b/mass_mailing_custom_unsubscribe/static/src/js/contact.tour.js
index 0d12240..949bec4 100644
--- a/mass_mailing_custom_unsubscribe/static/src/js/contact.tour.js
+++ b/mass_mailing_custom_unsubscribe/static/src/js/contact.tour.js
@@ -1,102 +1,100 @@
 /* Copyright 2016 Jairo Llopis <jairo.llopis@tecnativa.com>
  * License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl). */
-odoo.define("mass_mailing_custom_unsubscribe.contact_tour",
-    function (require) {
-        "use strict";
-        var base = require("web_editor.base");
-        var tour = require("web_tour.tour");
+odoo.define("mass_mailing_custom_unsubscribe.contact_tour", function(require) {
+    "use strict";
+    var base = require("web_editor.base");
+    var tour = require("web_tour.tour");
 
-        // Allow to know if an element is required
-        $.extend($.expr[':'], {
-            propRequired: function (element) {
-                return $(element).prop("required");
-            },
-        });
+    // Allow to know if an element is required
+    $.extend($.expr[":"], {
+        propRequired: function(element) {
+            return $(element).prop("required");
+        },
+    });
 
-        tour.register(
-            "mass_mailing_custom_unsubscribe_tour_contact",
+    tour.register(
+        "mass_mailing_custom_unsubscribe_tour_contact",
+        {
+            test: true,
+            wait_for: base.ready(),
+        },
+        [
             {
-                test: true,
-                wait_for: base.ready(),
+                content: "Choose other reason",
+                trigger: ".radio:contains('Other reason') :radio:not(:checked)",
+                extra_trigger: "#reason_form #custom_div_feedback",
             },
-            [
-                {
-                    content: "Choose other reason",
-                    trigger: ".radio:contains('Other reason') :radio:not(:checked)",
-                    extra_trigger: "#reason_form #custom_div_feedback",
-                },
-                {
-                    content: "Switch to not interested reason",
-                    trigger:
-                        ".radio:contains(\"I'm not interested\") :radio:not(:checked)",
-                    extra_trigger: "[name='details']:propRequired",
-                },
-                {
-                    content: "Unsubscribe",
-                    trigger: "#reason_form button:submit",
-                    extra_trigger: "body:not(:has([name='details']:propRequired))",
-                },
-                {
-                    content: "Successfully unsubscribed",
-                    trigger: "body:not(:has(#reason_form)) #subscription_info " +
-                         ":contains('successfully unsubscribed from')",
-                },
-                {
-                    content: "Unsubscription reasons are invisible",
-                    trigger: "#unsubscribe_form:has(#custom_div_feedback:hidden)",
-                },
-                {
-                    content: "List 2 is not cross unsubscriptable",
-                    trigger: "body:not(:has(li:contains('test list 2')))",
-                },
-                {
-                    content: "List 3 is not public",
-                    trigger: "body:not(:has(li:contains('test list 3')))",
-                },
-                {
-                    content: "Uncheck list 1",
-                    trigger: "li:contains('test list 1') input:checked",
-                },
-                {
-                    content: "Choose other reason",
-                    trigger: ".radio:contains('Other reason') :radio",
-                    extra_trigger: ".radio:contains('Other reason') " +
-                               ":radio:not(:checked)",
-                },
-                {
-                    content: "Add details to reason",
-                    trigger: "[name='details']:visible:propRequired",
-                    run: "text I want to unsubscribe because I want. Period.",
-                    extra_trigger: ".radio:contains('Other reason') :radio:checked",
-                },
-                {
-                    content: "Update subscriptions 2nd time",
-                    trigger: "#unsubscribe_form :submit",
-                },
-                {
-                    content: "Successfully unsubscribed",
-                    trigger:
-                        "#subscription_info:contains('Your changes have been saved.')",
-                },
-                {
-                    content: "Subscribe again to list 0",
-                    // eslint-disable-next-line no-multi-str
-                    trigger:"body:not(:has(#unsubscribe_form #custom_div_feedback\
+            {
+                content: "Switch to not interested reason",
+                trigger: '.radio:contains("I\'m not interested") :radio:not(:checked)',
+                extra_trigger: "[name='details']:propRequired",
+            },
+            {
+                content: "Unsubscribe",
+                trigger: "#reason_form button:submit",
+                extra_trigger: "body:not(:has([name='details']:propRequired))",
+            },
+            {
+                content: "Successfully unsubscribed",
+                trigger:
+                    "body:not(:has(#reason_form)) #subscription_info " +
+                    ":contains('successfully unsubscribed from')",
+            },
+            {
+                content: "Unsubscription reasons are invisible",
+                trigger: "#unsubscribe_form:has(#custom_div_feedback:hidden)",
+            },
+            {
+                content: "List 2 is not cross unsubscriptable",
+                trigger: "body:not(:has(li:contains('test list 2')))",
+            },
+            {
+                content: "List 3 is not public",
+                trigger: "body:not(:has(li:contains('test list 3')))",
+            },
+            {
+                content: "Uncheck list 1",
+                trigger: "li:contains('test list 1') input:checked",
+            },
+            {
+                content: "Choose other reason",
+                trigger: ".radio:contains('Other reason') :radio",
+                extra_trigger:
+                    ".radio:contains('Other reason') " + ":radio:not(:checked)",
+            },
+            {
+                content: "Add details to reason",
+                trigger: "[name='details']:visible:propRequired",
+                run: "text I want to unsubscribe because I want. Period.",
+                extra_trigger: ".radio:contains('Other reason') :radio:checked",
+            },
+            {
+                content: "Update subscriptions 2nd time",
+                trigger: "#unsubscribe_form :submit",
+            },
+            {
+                content: "Successfully unsubscribed",
+                trigger: "#subscription_info:contains('Your changes have been saved.')",
+            },
+            {
+                content: "Subscribe again to list 0",
+                // eslint-disable-next-line no-multi-str
+                trigger:
+                    "body:not(:has(#unsubscribe_form #custom_div_feedback\
                             :visible)):has(.alert-success) li:contains('test list 0') \
                             input:not(:checked)",
-                },
-                {
-                    content: "Update subscriptions 3nd time",
-                    // eslint-disable-next-line no-multi-str
-                    trigger:"#unsubscribe_form:not(\
+            },
+            {
+                content: "Update subscriptions 3nd time",
+                // eslint-disable-next-line no-multi-str
+                trigger:
+                    "#unsubscribe_form:not(\
                             :has(.js_unsubscription_reason:visible)) :submit",
-                },
-                {
-                    content: "Successfully subscribed",
-                    trigger:
-                        "#subscription_info:contains('Your changes have been saved.')",
-                },
-            ]
-        );
-    }
-);
+            },
+            {
+                content: "Successfully subscribed",
+                trigger: "#subscription_info:contains('Your changes have been saved.')",
+            },
+        ]
+    );
+});
diff --git a/mass_mailing_custom_unsubscribe/static/src/js/partner.tour.js b/mass_mailing_custom_unsubscribe/static/src/js/partner.tour.js
index 063cbee..d345b5c 100644
--- a/mass_mailing_custom_unsubscribe/static/src/js/partner.tour.js
+++ b/mass_mailing_custom_unsubscribe/static/src/js/partner.tour.js
@@ -1,48 +1,48 @@
 /* Copyright 2016 Jairo Llopis <jairo.llopis@tecnativa.com>
  * License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl). */
-odoo.define("mass_mailing_custom_unsubscribe.partner_tour",
-    function (require) {
-        "use strict";
-        var base = require("web_editor.base");
-        var tour = require("web_tour.tour");
+odoo.define("mass_mailing_custom_unsubscribe.partner_tour", function(require) {
+    "use strict";
+    var base = require("web_editor.base");
+    var tour = require("web_tour.tour");
 
-        // Allow to know if an element is required
-        $.extend($.expr[':'], {
-            propRequired: function (element) {
-                return $(element).prop("required");
-            },
-        });
+    // Allow to know if an element is required
+    $.extend($.expr[":"], {
+        propRequired: function(element) {
+            return $(element).prop("required");
+        },
+    });
 
-        tour.register(
-            "mass_mailing_custom_unsubscribe_tour_partner",
+    tour.register(
+        "mass_mailing_custom_unsubscribe_tour_partner",
+        {
+            tour: true,
+            wait_for: base.ready(),
+        },
+        [
             {
-                tour: true,
-                wait_for: base.ready(),
+                content: "Choose other reason",
+                trigger: ".radio:contains('Other reason') :radio:not(:checked)",
+                extra_trigger: "#reason_form #custom_div_feedback",
             },
-            [
-                {
-                    content: "Choose other reason",
-                    trigger: ".radio:contains('Other reason') :radio:not(:checked)",
-                    extra_trigger: "#reason_form #custom_div_feedback",
-                },
-                {
-                    content: "Switch to not interested reason",
-                    // eslint-disable-next-line no-multi-str
-                    trigger: ".radio:contains(\"I'm not interested\") \
-                            :radio:not(:checked)",
-                    extra_trigger: "[name='details']:propRequired",
-                },
-                {
-                    content: "Unsubscribe",
-                    trigger: "#reason_form button:submit",
-                    extra_trigger: "body:not(:has([name='details']:propRequired))",
-                },
-                {
-                    content: "Successfully unsubscribed",
-                    trigger: "body:not(:has(#reason_form)) #subscription_info " +
-                            ":contains('successfully unsubscribed')",
-                },
-            ]
-        );
-    }
-);
+            {
+                content: "Switch to not interested reason",
+                // eslint-disable-next-line no-multi-str
+                trigger:
+                    '.radio:contains("I\'m not interested") \
+                            :radio:not(:checked)',
+                extra_trigger: "[name='details']:propRequired",
+            },
+            {
+                content: "Unsubscribe",
+                trigger: "#reason_form button:submit",
+                extra_trigger: "body:not(:has([name='details']:propRequired))",
+            },
+            {
+                content: "Successfully unsubscribed",
+                trigger:
+                    "body:not(:has(#reason_form)) #subscription_info " +
+                    ":contains('successfully unsubscribed')",
+            },
+        ]
+    );
+});
diff --git a/mass_mailing_custom_unsubscribe/static/src/js/unsubscribe.js b/mass_mailing_custom_unsubscribe/static/src/js/unsubscribe.js
index 7417db1..c6c0ce8 100644
--- a/mass_mailing_custom_unsubscribe/static/src/js/unsubscribe.js
+++ b/mass_mailing_custom_unsubscribe/static/src/js/unsubscribe.js
@@ -5,30 +5,30 @@
  * to extend it as it is currently designed. It is almost a copy+paste from
  * upstream, to allow easier version/patch updates, so linter is disabled. */
 /* eslint-disable */
-odoo.define('mass_mailing_custom_unsubscribe.unsubscribe', function (require) {
-    'use strict';
+odoo.define("mass_mailing_custom_unsubscribe.unsubscribe", function(require) {
+    "use strict";
 
-    var ajax = require('web.ajax');
-    var core = require('web.core');
-    require('web.dom_ready');
+    var ajax = require("web.ajax");
+    var core = require("web.core");
+    require("web.dom_ready");
 
     var _t = core._t;
 
-    if (!$('.o_unsubscribe_form').length) {
+    if (!$(".o_unsubscribe_form").length) {
         return $.Deferred().reject("DOM doesn't contain '.o_unsubscribe_form'");
     }
 
     var email = $("input[name='email']").val();
     var mailing_id = parseInt($("input[name='mailing_id']").val(), 10);
     var res_id = parseInt($("input[name='res_id']").val(), 10);
-    var token = (location.search.split('token' + '=')[1] || '').split('&')[0];
+    var token = (location.search.split("token" + "=")[1] || "").split("&")[0];
     var $mailing_lists = $("input[name='contact_ids']");
     var $reasons = $("#custom_div_feedback");
     var $details = $("textarea[name='details']");
     var $radio = $(":radio");
     var $info_state = $("#info_state, #custom_div_feedback");
 
-    $radio.on('change click', function (e) {
+    $radio.on("change click", function(e) {
         $details.prop(
             "required",
             $(e.target).is("[data-details-required]") && $(e.target).is(":visible")
@@ -36,9 +36,9 @@ odoo.define('mass_mailing_custom_unsubscribe.unsubscribe', function (require) {
     });
 
     // Display reasons form only if there are unsubscriptions
-    var toggle_reasons = function () {
+    var toggle_reasons = function() {
         // Find contacts that were checked and now are unchecked
-        var $disabled = $mailing_lists.filter(function () {
+        var $disabled = $mailing_lists.filter(function() {
             var $this = $(this);
             return !$this.prop("checked") && $this.attr("checked");
         });
@@ -47,11 +47,12 @@ odoo.define('mass_mailing_custom_unsubscribe.unsubscribe', function (require) {
         var $radios = $reasons.find(":radio");
         if ($reasons.is(":hidden")) {
             // Uncheck chosen reason
-            $radios.prop("checked", false)
-            // Unrequire specifying a reason
-            .prop("required", false)
-            // Remove possible constraints for details
-            .trigger("change");
+            $radios
+                .prop("checked", false)
+                // Unrequire specifying a reason
+                .prop("required", false)
+                // Remove possible constraints for details
+                .trigger("change");
             // Clear textarea
             $details.val("");
         } else {
@@ -60,76 +61,87 @@ odoo.define('mass_mailing_custom_unsubscribe.unsubscribe', function (require) {
         }
     };
 
-    $mailing_lists.change(function (e) {
+    $mailing_lists.change(function(e) {
         toggle_reasons();
-        $('#info_state').addClass('invisible');
+        $("#info_state").addClass("invisible");
     });
 
-    if (email != '' && email != undefined) {
-        ajax.jsonRpc('/mailing/blacklist/check', 'call', {
-            'email': email,
-            'mailing_id': mailing_id,
-            'res_id': res_id,
-            'token': token
+    if (email != "" && email != undefined) {
+        ajax.jsonRpc("/mailing/blacklist/check", "call", {
+            email: email,
+            mailing_id: mailing_id,
+            res_id: res_id,
+            token: token,
         })
-            .then(function (result) {
-                if (result == 'unauthorized') {
-                    $('#button_add_blacklist').hide();
-                    $('#button_remove_blacklist').hide();
-                }
-                else if (result == true) {
-                    $('#button_remove_blacklist').show();
+            .then(function(result) {
+                if (result == "unauthorized") {
+                    $("#button_add_blacklist").hide();
+                    $("#button_remove_blacklist").hide();
+                } else if (result == true) {
+                    $("#button_remove_blacklist").show();
                     toggle_opt_out_section(false);
-                }
-                else if (result == false) {
-                    $('#button_add_blacklist').show();
+                } else if (result == false) {
+                    $("#button_add_blacklist").show();
                     toggle_opt_out_section(true);
-                }
-                else {
-                    $('#subscription_info').html(_t('An error occured. Please try again later or contact us.'));
-                    $info_state.removeClass('alert-success').removeClass('alert-info').removeClass('alert-warning').addClass('alert-error');
+                } else {
+                    $("#subscription_info").html(
+                        _t("An error occured. Please try again later or contact us.")
+                    );
+                    $info_state
+                        .removeClass("alert-success")
+                        .removeClass("alert-info")
+                        .removeClass("alert-warning")
+                        .addClass("alert-error");
                 }
             })
-            .guardedCatch(function () {
-                $('#subscription_info').html(_t('An error occured. Please try again later or contact us.'));
-                $info_state.removeClass('alert-success').removeClass('alert-info').removeClass('alert-warning').addClass('alert-error');
+            .guardedCatch(function() {
+                $("#subscription_info").html(
+                    _t("An error occured. Please try again later or contact us.")
+                );
+                $info_state
+                    .removeClass("alert-success")
+                    .removeClass("alert-info")
+                    .removeClass("alert-warning")
+                    .addClass("alert-error");
             });
-    }
-    else {
-        $('#div_blacklist').hide();
+    } else {
+        $("#div_blacklist").hide();
     }
 
     var unsubscribed_list = $("input[name='unsubscribed_list']").val();
-    if (unsubscribed_list){
-        $('#subscription_info').html(_.str.sprintf(
-            _t("You have been <strong>successfully unsubscribed from %s</strong>."),
-            unsubscribed_list
-        ));
-    }
-    else{
-        $('#subscription_info').html(_t('You have been <strong>successfully unsubscribed</strong>.'));
+    if (unsubscribed_list) {
+        $("#subscription_info").html(
+            _.str.sprintf(
+                _t("You have been <strong>successfully unsubscribed from %s</strong>."),
+                unsubscribed_list
+            )
+        );
+    } else {
+        $("#subscription_info").html(
+            _t("You have been <strong>successfully unsubscribed</strong>.")
+        );
     }
 
-    $('#unsubscribe_form').on('submit', function (e) {
+    $("#unsubscribe_form").on("submit", function(e) {
         e.preventDefault();
 
         var checked_ids = [];
-        $("input[type='checkbox']:checked").each(function (i) {
+        $("input[type='checkbox']:checked").each(function(i) {
             checked_ids[i] = parseInt($(this).val(), 10);
         });
 
         var unchecked_ids = [];
-        $("input[type='checkbox']:not(:checked)").each(function (i) {
+        $("input[type='checkbox']:not(:checked)").each(function(i) {
             unchecked_ids[i] = parseInt($(this).val(), 10);
         });
 
         var values = {
-            'opt_in_ids': checked_ids,
-            'opt_out_ids': unchecked_ids,
-            'email': email,
-            'mailing_id': mailing_id,
-            'res_id': res_id,
-            'token': token
+            opt_in_ids: checked_ids,
+            opt_out_ids: unchecked_ids,
+            email: email,
+            mailing_id: mailing_id,
+            res_id: res_id,
+            token: token,
         };
         // Only send reason and details if an unsubscription was found
         if ($reasons.is(":visible")) {
@@ -140,41 +152,53 @@ odoo.define('mass_mailing_custom_unsubscribe.unsubscribe', function (require) {
             values.details = $details.val();
         }
 
-        ajax.jsonRpc('/mail/mailing/unsubscribe', 'call', values)
-            .then(function (result) {
-                if (result == 'unauthorized') {
-                    $('#info_state').removeClass('invisible');
-                    $('#subscription_info').html(_t('You are not authorized to do this!'));
-                    $info_state.removeClass('alert-success').removeClass('alert-info').removeClass('alert-error').addClass('alert-warning');
-                }
-                else if (result == true) {
-                    $('#info_state').removeClass('invisible');
-                    $('#subscription_info').html(_t('Your changes have been saved.'));
-                    $info_state.removeClass('alert-info').addClass('alert-success');
+        ajax.jsonRpc("/mail/mailing/unsubscribe", "call", values)
+            .then(function(result) {
+                if (result == "unauthorized") {
+                    $("#info_state").removeClass("invisible");
+                    $("#subscription_info").html(
+                        _t("You are not authorized to do this!")
+                    );
+                    $info_state
+                        .removeClass("alert-success")
+                        .removeClass("alert-info")
+                        .removeClass("alert-error")
+                        .addClass("alert-warning");
+                } else if (result == true) {
+                    $("#info_state").removeClass("invisible");
+                    $("#subscription_info").html(_t("Your changes have been saved."));
+                    $info_state.removeClass("alert-info").addClass("alert-success");
                     // Store checked status, to enable further changes
-                    $mailing_lists.each(function () {
+                    $mailing_lists.each(function() {
                         var $this = $(this);
                         $this.attr("checked", $this.prop("checked"));
                     });
                     toggle_reasons();
-                }
-                else {
-                    $('#info_state').removeClass('invisible');
-                    $('#subscription_info').html(_t('An error occurred. Your changes have not been saved, try again later.'));
-                    $info_state.removeClass('alert-info').addClass('alert-warning');
+                } else {
+                    $("#info_state").removeClass("invisible");
+                    $("#subscription_info").html(
+                        _t(
+                            "An error occurred. Your changes have not been saved, try again later."
+                        )
+                    );
+                    $info_state.removeClass("alert-info").addClass("alert-warning");
                 }
             })
-            .guardedCatch(function () {
-                $('#info_state').removeClass('invisible');
-                $('#subscription_info').html(_t('An error occurred. Your changes have not been saved, try again later.'));
-                $info_state.removeClass('alert-info').addClass('alert-warning');
+            .guardedCatch(function() {
+                $("#info_state").removeClass("invisible");
+                $("#subscription_info").html(
+                    _t(
+                        "An error occurred. Your changes have not been saved, try again later."
+                    )
+                );
+                $info_state.removeClass("alert-info").addClass("alert-warning");
             });
     });
 
     //  ==================
     //      Blacklist
     //  ==================
-    $('#button_add_blacklist').click(function (e) {
+    $("#button_add_blacklist").click(function(e) {
         e.preventDefault();
 
         if ($reasons.is(":hidden")) {
@@ -185,104 +209,161 @@ odoo.define('mass_mailing_custom_unsubscribe.unsubscribe', function (require) {
             return;
         }
 
-        ajax.jsonRpc('/mailing/blacklist/add', 'call', {
-            'email': email,
-            'mailing_id': mailing_id,
-            'res_id': res_id,
-            'token': token,
-            'reason_id': parseInt($reasons.find("[name='reason_id']:checked").val(), 10),
-            'details': $details.val(),
+        ajax.jsonRpc("/mailing/blacklist/add", "call", {
+            email: email,
+            mailing_id: mailing_id,
+            res_id: res_id,
+            token: token,
+            reason_id: parseInt($reasons.find("[name='reason_id']:checked").val(), 10),
+            details: $details.val(),
         })
-            .then(function (result) {
-                if (result == 'unauthorized') {
-                    $('#info_state').removeClass('invisible');
-                    $('#subscription_info').html(_t('You are not authorized to do this!'));
-                    $info_state.removeClass('alert-success').removeClass('alert-info').removeClass('alert-error').addClass('alert-warning');
-                }
-                else {
+            .then(function(result) {
+                if (result == "unauthorized") {
+                    $("#info_state").removeClass("invisible");
+                    $("#subscription_info").html(
+                        _t("You are not authorized to do this!")
+                    );
+                    $info_state
+                        .removeClass("alert-success")
+                        .removeClass("alert-info")
+                        .removeClass("alert-error")
+                        .addClass("alert-warning");
+                } else {
                     if (result) {
-                        $('#info_state').removeClass('invisible');
-                        $('#subscription_info').html(_t('You have been successfully <strong>added to our blacklist</strong>. '
-                            + 'You will not be contacted anymore by our services.'));
-                        $info_state.removeClass('alert-warning').removeClass('alert-info').removeClass('alert-error').addClass('alert-success');
+                        $("#info_state").removeClass("invisible");
+                        $("#subscription_info").html(
+                            _t(
+                                "You have been successfully <strong>added to our blacklist</strong>. " +
+                                    "You will not be contacted anymore by our services."
+                            )
+                        );
+                        $info_state
+                            .removeClass("alert-warning")
+                            .removeClass("alert-info")
+                            .removeClass("alert-error")
+                            .addClass("alert-success");
                         toggle_opt_out_section(false);
                         // set mailing lists checkboxes to previous state
-                        $mailing_lists.each(function () {
+                        $mailing_lists.each(function() {
                             var $this = $(this);
                             $this.prop("checked", $(this)[0].hasAttribute("checked"));
                         });
                         // Hide reasons and reset reason fields
-                        $reasons.toggleClass("d-none", true)
-                            .find(":radio").prop("checked", false);
+                        $reasons
+                            .toggleClass("d-none", true)
+                            .find(":radio")
+                            .prop("checked", false);
                         $details.val("").prop("required", false);
+                    } else {
+                        $("#info_state").removeClass("invisible");
+                        $("#subscription_info").html(
+                            _t(
+                                "An error occured. Please try again later or contact us."
+                            )
+                        );
+                        $info_state
+                            .removeClass("alert-success")
+                            .removeClass("alert-info")
+                            .removeClass("alert-warning")
+                            .addClass("alert-error");
                     }
-                    else {
-                        $('#info_state').removeClass('invisible');
-                        $('#subscription_info').html(_t('An error occured. Please try again later or contact us.'));
-                        $info_state.removeClass('alert-success').removeClass('alert-info').removeClass('alert-warning').addClass('alert-error');
-                    }
-                    $('#button_add_blacklist').hide();
-                    $('#button_remove_blacklist').show();
-                    $('#unsubscribed_info').hide();
+                    $("#button_add_blacklist").hide();
+                    $("#button_remove_blacklist").show();
+                    $("#unsubscribed_info").hide();
                 }
             })
-            .guardedCatch(function () {
-                $('#subscription_info').html(_t('An error occured. Please try again later or contact us.'));
-                $info_state.removeClass('alert-success').removeClass('alert-info').removeClass('alert-warning').addClass('alert-error');
+            .guardedCatch(function() {
+                $("#subscription_info").html(
+                    _t("An error occured. Please try again later or contact us.")
+                );
+                $info_state
+                    .removeClass("alert-success")
+                    .removeClass("alert-info")
+                    .removeClass("alert-warning")
+                    .addClass("alert-error");
             });
     });
 
-    $('#button_remove_blacklist').click(function (e) {
+    $("#button_remove_blacklist").click(function(e) {
         e.preventDefault();
 
-        ajax.jsonRpc('/mailing/blacklist/remove', 'call', {
-            'email': email,
-            'mailing_id': mailing_id,
-            'res_id': res_id,
-            'token': token
+        ajax.jsonRpc("/mailing/blacklist/remove", "call", {
+            email: email,
+            mailing_id: mailing_id,
+            res_id: res_id,
+            token: token,
         })
-            .then(function (result) {
-                if (result == 'unauthorized') {
-                    $('#info_state').removeClass('invisible');
-                    $('#subscription_info').html(_t('You are not authorized to do this!'));
-                    $info_state.removeClass('alert-success').removeClass('alert-info').removeClass('alert-error').addClass('alert-warning');
-                }
-                else {
+            .then(function(result) {
+                if (result == "unauthorized") {
+                    $("#info_state").removeClass("invisible");
+                    $("#subscription_info").html(
+                        _t("You are not authorized to do this!")
+                    );
+                    $info_state
+                        .removeClass("alert-success")
+                        .removeClass("alert-info")
+                        .removeClass("alert-error")
+                        .addClass("alert-warning");
+                } else {
                     if (result) {
-                        $('#info_state').removeClass('invisible');
-                        $('#subscription_info').html(_t("You have been successfully <strong>removed from our blacklist</strong>. "
-                            + "You are now able to be contacted by our services."));
-                        $info_state.removeClass('alert-warning').removeClass('alert-info').removeClass('alert-error').addClass('alert-success');
+                        $("#info_state").removeClass("invisible");
+                        $("#subscription_info").html(
+                            _t(
+                                "You have been successfully <strong>removed from our blacklist</strong>. " +
+                                    "You are now able to be contacted by our services."
+                            )
+                        );
+                        $info_state
+                            .removeClass("alert-warning")
+                            .removeClass("alert-info")
+                            .removeClass("alert-error")
+                            .addClass("alert-success");
                         toggle_opt_out_section(true);
+                    } else {
+                        $("#info_state").removeClass("invisible");
+                        $("#subscription_info").html(
+                            _t(
+                                "An error occured. Please try again later or contact us."
+                            )
+                        );
+                        $info_state
+                            .removeClass("alert-success")
+                            .removeClass("alert-info")
+                            .removeClass("alert-warning")
+                            .addClass("alert-error");
                     }
-                    else {
-                        $('#info_state').removeClass('invisible');
-                        $('#subscription_info').html(_t('An error occured. Please try again later or contact us.'));
-                        $info_state.removeClass('alert-success').removeClass('alert-info').removeClass('alert-warning').addClass('alert-error');
-                    }
-                    $('#button_add_blacklist').show();
-                    $('#button_remove_blacklist').hide();
-                    $('#unsubscribed_info').hide();
+                    $("#button_add_blacklist").show();
+                    $("#button_remove_blacklist").hide();
+                    $("#unsubscribed_info").hide();
                 }
             })
-            .guardedCatch(function () {
-                $('#info_state').removeClass('invisible');
-                $('#subscription_info').html(_t('An error occured. Please try again later or contact us.'));
-                $info_state.removeClass('alert-success').removeClass('alert-info').removeClass('alert-warning').addClass('alert-error');
+            .guardedCatch(function() {
+                $("#info_state").removeClass("invisible");
+                $("#subscription_info").html(
+                    _t("An error occured. Please try again later or contact us.")
+                );
+                $info_state
+                    .removeClass("alert-success")
+                    .removeClass("alert-info")
+                    .removeClass("alert-warning")
+                    .addClass("alert-error");
             });
     });
 });
 
 function toggle_opt_out_section(value) {
     var result = !value;
-    $("#div_opt_out").find('*').attr('disabled', result);
-    $("#button_add_blacklist").attr('disabled', false);
-    $("#button_remove_blacklist").attr('disabled', false);
-    $("#custom_div_feedback").find('*').attr('disabled', false);
+    $("#div_opt_out")
+        .find("*")
+        .attr("disabled", result);
+    $("#button_add_blacklist").attr("disabled", false);
+    $("#button_remove_blacklist").attr("disabled", false);
+    $("#custom_div_feedback")
+        .find("*")
+        .attr("disabled", false);
     if (value) {
-        $('[name="button_subscription"]').addClass('clickable');
-    }
-    else {
-        $('[name="button_subscription"]').removeClass('clickable');
+        $('[name="button_subscription"]').addClass("clickable");
+    } else {
+        $('[name="button_subscription"]').removeClass("clickable");
     }
 }
diff --git a/mass_mailing_custom_unsubscribe/templates/general_reason_form.xml b/mass_mailing_custom_unsubscribe/templates/general_reason_form.xml
index 3aa5a13..a29b37b 100644
--- a/mass_mailing_custom_unsubscribe/templates/general_reason_form.xml
+++ b/mass_mailing_custom_unsubscribe/templates/general_reason_form.xml
@@ -1,24 +1,34 @@
 <?xml version="1.0" encoding="utf-8" ?>
 <!-- Copyright 2016 Jairo Llopis <jairo.llopis@tecnativa.com>
      License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl). -->
-
 <odoo>
 
     <template id="reason" name="UI for Providing Unsubscription Reasons">
-        <div id="custom_div_feedback" t-attf-class="alert alert-success mt-4 #{extra_class or ''}" role="status">
-            <p>We would appreciate if you provide feedback about why you updated<br/>your subscriptions
+        <div
+            id="custom_div_feedback"
+            t-attf-class="alert alert-success mt-4 #{extra_class or ''}"
+            role="status"
+        >
+            <p>We would appreciate if you provide feedback about why you updated<br
+                />your subscriptions
             </p>
             <div class="col-md-12 mb16">
                 <t t-foreach="reasons" t-as="reason">
                     <div class="radio">
                         <label>
-                            <input type="radio" name="reason_id" t-att-data-details-required="reason.details_required" t-att-value="reason.id" required="required"/>
-                            <t t-esc="reason.display_name"/>
+                            <input
+                                type="radio"
+                                name="reason_id"
+                                t-att-data-details-required="reason.details_required"
+                                t-att-value="reason.id"
+                                required="required"
+                            />
+                            <t t-esc="reason.display_name" />
                         </label>
                     </div>
                 </t>
             </div>
-            <textarea class="form-control" name="details" cols="60" rows="3"></textarea>
+            <textarea class="form-control" name="details" cols="60" rows="3" />
         </div>
     </template>
 
@@ -26,12 +36,25 @@
         <t t-call="mass_mailing.layout">
             <div class="container o_unsubscribe_form">
                 <div class="row">
-                    <form id="reason_form" t-attf-action="/mail/mailing/#{mailing_id}/unsubscribe?token=#{token}" method="post" class="col-lg-6 offset-lg-3 mt-4">
-                        <input type="hidden" name="csrf_token" t-att-value="request.csrf_token()"/>
-                        <input type="hidden" name="email" t-att-value="email"/>
-                        <input type="hidden" name="mailing_id" t-att-value="mailing_id"/>
-                        <input type="hidden" name="res_id" t-att-value="res_id"/>
-                        <t t-call="mass_mailing_custom_unsubscribe.reason"/>
+                    <form
+                        id="reason_form"
+                        t-attf-action="/mail/mailing/#{mailing_id}/unsubscribe?token=#{token}"
+                        method="post"
+                        class="col-lg-6 offset-lg-3 mt-4"
+                    >
+                        <input
+                            type="hidden"
+                            name="csrf_token"
+                            t-att-value="request.csrf_token()"
+                        />
+                        <input type="hidden" name="email" t-att-value="email" />
+                        <input
+                            type="hidden"
+                            name="mailing_id"
+                            t-att-value="mailing_id"
+                        />
+                        <input type="hidden" name="res_id" t-att-value="res_id" />
+                        <t t-call="mass_mailing_custom_unsubscribe.reason" />
                         <div class="form-group mb16 mt16">
                             <button type="submit" class="btn btn-danger">
                                 Unsubscribe now
diff --git a/mass_mailing_custom_unsubscribe/templates/mass_mailing_contact_reason.xml b/mass_mailing_custom_unsubscribe/templates/mass_mailing_contact_reason.xml
index debd50f..cb0a6fa 100644
--- a/mass_mailing_custom_unsubscribe/templates/mass_mailing_contact_reason.xml
+++ b/mass_mailing_custom_unsubscribe/templates/mass_mailing_contact_reason.xml
@@ -1,31 +1,36 @@
 <?xml version="1.0" encoding="utf-8" ?>
 <!-- Copyright 2016 Jairo Llopis <jairo.llopis@tecnativa.com>
      License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl). -->
-
 <odoo>
 
-    <template id="unsubscribe" inherit_id="mass_mailing.unsubscribe" name="Add Reasons to Mailing List Management Form">
+    <template
+        id="unsubscribe"
+        inherit_id="mass_mailing.unsubscribe"
+        name="Add Reasons to Mailing List Management Form"
+    >
         <!-- Hide original feedback textarea to put another one after mailing lists checkboxes -->
         <xpath expr="//div[@id='div_feedback']" position="attributes">
-            <attribute name="class" add="d-none" separator=" "/>
+            <attribute name="class" add="d-none" separator=" " />
         </xpath>
 
         <!-- Add reasons to mass mailing list manager -->
         <xpath expr="//ul[hasclass('list-group')]" position="after">
             <t t-call="mass_mailing_custom_unsubscribe.reason">
-                <t t-set="extra_class" t-value="'d-none'"/>
+                <t t-set="extra_class" t-value="'d-none'" />
             </t>
         </xpath>
     </template>
 
-    <template id="unsubscribed"
-              inherit_id="mass_mailing.unsubscribed"
-              name="Add Reasons to Blacklist Management Form">
+    <template
+        id="unsubscribed"
+        inherit_id="mass_mailing.unsubscribed"
+        name="Add Reasons to Blacklist Management Form"
+    >
         <!-- Add reasons to blacklist manager  -->
         <xpath expr="//div[@id='button_add_blacklist']" position="before">
             <form id="unsubscribe_form">
                 <t t-call="mass_mailing_custom_unsubscribe.reason">
-                    <t t-set="extra_class" t-value="'d-none'"/>
+                    <t t-set="extra_class" t-value="'d-none'" />
                 </t>
             </form>
         </xpath>
diff --git a/mass_mailing_custom_unsubscribe/views/assets.xml b/mass_mailing_custom_unsubscribe/views/assets.xml
index 6e6d075..f72bb40 100644
--- a/mass_mailing_custom_unsubscribe/views/assets.xml
+++ b/mass_mailing_custom_unsubscribe/views/assets.xml
@@ -1,15 +1,18 @@
-<?xml version="1.0" encoding="utf-8"?>
+<?xml version="1.0" encoding="utf-8" ?>
 <!-- Copyright 2016 Jairo Llopis <jairo.llopis@tecnativa.com>
      License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl). -->
-
 <odoo>
 
-<template id="assets_backend"
-          inherit_id="mass_mailing.assets_backend">
+<template id="assets_backend" inherit_id="mass_mailing.assets_backend">
     <!-- Need to replace the asset because upstream is impossible to extend -->
-    <xpath expr="//script[@src='/mass_mailing/static/src/js/unsubscribe.js']" position="replace">
-        <script type="text/javascript"
-                src="/mass_mailing_custom_unsubscribe/static/src/js/unsubscribe.js"/>
+    <xpath
+            expr="//script[@src='/mass_mailing/static/src/js/unsubscribe.js']"
+            position="replace"
+        >
+        <script
+                type="text/javascript"
+                src="/mass_mailing_custom_unsubscribe/static/src/js/unsubscribe.js"
+            />
     </xpath>
 </template>
 
diff --git a/mass_mailing_custom_unsubscribe/views/mail_mass_mailing_list_view.xml b/mass_mailing_custom_unsubscribe/views/mail_mass_mailing_list_view.xml
index 7008b82..0a4682b 100644
--- a/mass_mailing_custom_unsubscribe/views/mail_mass_mailing_list_view.xml
+++ b/mass_mailing_custom_unsubscribe/views/mail_mass_mailing_list_view.xml
@@ -1,16 +1,17 @@
-<?xml version="1.0" encoding="utf-8"?>
+<?xml version="1.0" encoding="utf-8" ?>
 <!-- Copyright 2016 Pedro M. Baeza <pedro.baeza@tecnativa.com>
      License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl). -->
-
 <odoo>
 
     <record id="view_mail_mass_mailing_list_form" model="ir.ui.view">
         <field name="model">mailing.list</field>
-        <field name="inherit_id" ref="mass_mailing.mailing_list_view_form"/>
+        <field name="inherit_id" ref="mass_mailing.mailing_list_view_form" />
         <field name="arch" type="xml">
             <field name="is_public" position="after">
-                <field name="not_cross_unsubscriptable"
-                       attrs="{'invisible': [('is_public', '=', False)]}"/>
+                <field
+                    name="not_cross_unsubscriptable"
+                    attrs="{'invisible': [('is_public', '=', False)]}"
+                />
             </field>
         </field>
     </record>
diff --git a/mass_mailing_custom_unsubscribe/views/mail_unsubscription_reason_view.xml b/mass_mailing_custom_unsubscribe/views/mail_unsubscription_reason_view.xml
index 86bc785..8047d1d 100644
--- a/mass_mailing_custom_unsubscribe/views/mail_unsubscription_reason_view.xml
+++ b/mass_mailing_custom_unsubscribe/views/mail_unsubscription_reason_view.xml
@@ -1,7 +1,6 @@
-<?xml version="1.0" encoding="utf-8"?>
+<?xml version="1.0" encoding="utf-8" ?>
 <!-- Copyright 2016 Jairo Llopis <jairo.llopis@tecnativa.com>
      License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl). -->
-
 <odoo>
 
 <record id="mail_unsubscription_reason_view_form" model="ir.ui.view">
@@ -11,11 +10,11 @@
         <form>
             <sheet>
                 <group>
-                    <field name="name"/>
-                    <field name="details_required"/>
-                    <field name="sequence"/>
+                    <field name="name" />
+                    <field name="details_required" />
+                    <field name="sequence" />
                 </group>
-                <div class="oe_chatter"/>
+                <div class="oe_chatter" />
             </sheet>
         </form>
     </field>
@@ -26,9 +25,9 @@
     <field name="model">mail.unsubscription.reason</field>
     <field name="arch" type="xml">
         <tree>
-            <field name="sequence" widget="handle"/>
-            <field name="name"/>
-            <field name="details_required"/>
+            <field name="sequence" widget="handle" />
+            <field name="name" />
+            <field name="details_required" />
         </tree>
     </field>
 </record>
@@ -38,20 +37,22 @@
     <field name="model">mail.unsubscription.reason</field>
     <field name="arch" type="xml">
         <search>
-            <field name="name"/>
-            <field name="details_required"/>
+            <field name="name" />
+            <field name="details_required" />
         </search>
     </field>
 </record>
 
 <act_window
-    id="mail_unsubscription_reason_action"
-    name="Unsubscription Reasons"
-    res_model="mail.unsubscription.reason"/>
+        id="mail_unsubscription_reason_action"
+        name="Unsubscription Reasons"
+        res_model="mail.unsubscription.reason"
+    />
 
 <menuitem
-    id="mail_unsubscription_reason_menu"
-    parent="mass_mailing.mass_mailing_configuration"
-    action="mail_unsubscription_reason_action"/>
+        id="mail_unsubscription_reason_menu"
+        parent="mass_mailing.mass_mailing_configuration"
+        action="mail_unsubscription_reason_action"
+    />
 
 </odoo>
diff --git a/mass_mailing_custom_unsubscribe/views/mail_unsubscription_view.xml b/mass_mailing_custom_unsubscribe/views/mail_unsubscription_view.xml
index 4d6d0ac..96cf18f 100644
--- a/mass_mailing_custom_unsubscribe/views/mail_unsubscription_view.xml
+++ b/mass_mailing_custom_unsubscribe/views/mail_unsubscription_view.xml
@@ -1,7 +1,6 @@
-<?xml version="1.0" encoding="utf-8"?>
+<?xml version="1.0" encoding="utf-8" ?>
 <!-- Copyright 2016 Jairo Llopis <jairo.llopis@tecnativa.com>
      License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl). -->
-
 <odoo>
 
 <record id="mail_unsubscription_view_form" model="ir.ui.view">
@@ -11,26 +10,31 @@
         <form>
             <sheet>
                 <group>
-                    <field name="date"/>
-                    <field name="mass_mailing_id"/>
-                    <field name="unsubscriber_id"/>
-                    <field name="mailing_list_ids" widget="many2many_tags"/>
-                    <field name="email"/>
-                    <field name="action"/>
-                    <field name="reason_id"
-                           attrs="{'required': [('action', '=', 'unsubscription')]}"/>
-                    <field name="details"
-                           attrs="{'required': [('details_required', '=', True)]}"/>
-                    <field name="details_required" invisible="True"/>
-                    <field name="metadata"/>
+                    <field name="date" />
+                    <field name="mass_mailing_id" />
+                    <field name="unsubscriber_id" />
+                    <field name="mailing_list_ids" widget="many2many_tags" />
+                    <field name="email" />
+                    <field name="action" />
+                    <field
+                            name="reason_id"
+                            attrs="{'required': [('action', '=', 'unsubscription')]}"
+                        />
+                    <field
+                            name="details"
+                            attrs="{'required': [('details_required', '=', True)]}"
+                        />
+                    <field name="details_required" invisible="True" />
+                    <field name="metadata" />
                 </group>
             </sheet>
             <div class="oe_chatter">
-                <field name="message_follower_ids"
-                       widget="mail_followers"
-                       groups="base.group_user"/>
-                <field name="message_ids"
-                       widget="mail_thread"/>
+                <field
+                        name="message_follower_ids"
+                        widget="mail_followers"
+                        groups="base.group_user"
+                    />
+                <field name="message_ids" widget="mail_thread" />
            </div>
         </form>
     </field>
@@ -41,14 +45,14 @@
     <field name="model">mail.unsubscription</field>
     <field name="arch" type="xml">
         <tree decoration-warning="action in ['unsubscription', 'blacklist_add']">
-            <field name="date"/>
-            <field name="mass_mailing_id"/>
-            <field name="unsubscriber_id"/>
-            <field name="mailing_list_ids" widget="many2many_tags"/>
-            <field name="email" invisible="True"/>
-            <field name="action"/>
-            <field name="reason_id"/>
-            <field name="details" invisible="True"/>
+            <field name="date" />
+            <field name="mass_mailing_id" />
+            <field name="unsubscriber_id" />
+            <field name="mailing_list_ids" widget="many2many_tags" />
+            <field name="email" invisible="True" />
+            <field name="action" />
+            <field name="reason_id" />
+            <field name="details" invisible="True" />
         </tree>
     </field>
 </record>
@@ -58,32 +62,44 @@
     <field name="model">mail.unsubscription</field>
     <field name="arch" type="xml">
         <search>
-            <field name="mass_mailing_id"/>
-            <field name="unsubscriber_id"/>
-            <field name="mailing_list_ids"/>
-            <field name="email"/>
-            <field name="reason_id"/>
-            <field name="details"/>
-            <separator/>
+            <field name="mass_mailing_id" />
+            <field name="unsubscriber_id" />
+            <field name="mailing_list_ids" />
+            <field name="email" />
+            <field name="reason_id" />
+            <field name="details" />
+            <separator />
             <group string="Group by">
-                <filter name="group_by_month"
+                <filter
+                        name="group_by_month"
                         string="Month"
-                        context="{'group_by': 'date:month'}"/>
-                <filter name="group_by_year"
+                        context="{'group_by': 'date:month'}"
+                    />
+                <filter
+                        name="group_by_year"
                         string="Year"
-                        context="{'group_by': 'date:year'}"/>
-                <filter name="group_by_action"
+                        context="{'group_by': 'date:year'}"
+                    />
+                <filter
+                        name="group_by_action"
                         string="Action"
-                        context="{'group_by': 'action'}"/>
-                <filter name="group_by_email"
+                        context="{'group_by': 'action'}"
+                    />
+                <filter
+                        name="group_by_email"
                         string="Email"
-                        context="{'group_by': 'email'}"/>
-                <filter name="group_by_reason"
+                        context="{'group_by': 'email'}"
+                    />
+                <filter
+                        name="group_by_reason"
                         string="Reason"
-                        context="{'group_by': 'reason_id'}"/>
-                <filter name="group_by_mass_mailing"
+                        context="{'group_by': 'reason_id'}"
+                    />
+                <filter
+                        name="group_by_mass_mailing"
                         string="Mass mailing"
-                        context="{'group_by': 'mass_mailing_id'}"/>
+                        context="{'group_by': 'mass_mailing_id'}"
+                    />
             </group>
         </search>
     </field>
@@ -94,9 +110,9 @@
     <field name="model">mail.unsubscription</field>
     <field name="arch" type="xml">
         <pivot string="(Un)subscriptions">
-            <field name="reason_id" type="row"/>
-            <field name="mailing_list_ids" type="row"/>
-            <field name="action" type="col"/>
+            <field name="reason_id" type="row" />
+            <field name="mailing_list_ids" type="row" />
+            <field name="action" type="col" />
         </pivot>
     </field>
 </record>
@@ -106,18 +122,23 @@
     <field name="model">mail.unsubscription</field>
     <field name="arch" type="xml">
         <graph string="(Un)subscriptions">
-            <field name="date" type="row"/>
-            <field name="action" type="col"/>
+            <field name="date" type="row" />
+            <field name="action" type="col" />
         </graph>
     </field>
 </record>
 
-<act_window id="mail_unsubscription_action"
-            name="(Un)subscriptions"
-            view_mode="tree,form,pivot,graph"
-            res_model="mail.unsubscription"/>
+<act_window
+        id="mail_unsubscription_action"
+        name="(Un)subscriptions"
+        view_mode="tree,form,pivot,graph"
+        res_model="mail.unsubscription"
+    />
 
-<menuitem id="mail_unsubscription_menu" parent="mass_mailing.mass_mailing_menu_root"
-          action="mail_unsubscription_action"/>
+<menuitem
+        id="mail_unsubscription_menu"
+        parent="mass_mailing.mass_mailing_menu_root"
+        action="mail_unsubscription_action"
+    />
 
 </odoo>