public function init() {
        // actions
        add_action('wcexaap_quickpay_custom_assets', function () {
            /**
             * @deprecated 2.0.0 Use {@see 'wcexaap_quickpay_custom_assets'} instead.
             */
            do_action_deprecated('app_quickpay_custom_assets', [], '2.0.0', 'wcexaap_quickpay_custom_assets');
        });
        add_action('wcexaap_checkout_review_template', function () {
            /**
             * @deprecated 2.0.0 Use {@see 'wcexaap_checkout_review_template'} instead.
             */
            do_action_deprecated('aap_quickpay_confirm_container', [], '2.0.0', 'wcexaap_checkout_review_template');
        });

        // filters
        add_filter('wcexaap_custom_fields_select_default_value', function ($value, $selects, $ident, $key, $entry) {
            /**
             * @deprecated 2.0.0 Use {@see 'wcexaap_custom_fields_select_default_value'} instead.
             * @param string $value
             * @param array  $selects
             * @param string $ident
             * @param string $key
             * @param array  $entry
             */
            return apply_filters_deprecated(
                'aap_custom_fields_select_default_value',
                [$value, $selects, $ident, $key, $entry],
                '2.0.0',
                'wcexaap_custom_fields_select_default_value'
            );
        }, 10, 5);
        add_filter('wcexaap_custom_fields_text_default_value', function ($value, $selects, $ident, $key, $entry) {
            /**
             * @deprecated 2.0.0 Use {@see 'wcexaap_custom_fields_text_default_value'} instead.
             * @param string $value
             * @param array  $selects
             * @param string $ident
             * @param string $key
             * @param array  $entry
             */
            return apply_filters_deprecated(
                'aap_custom_fields_text_default_value',
                [$value, $selects, $ident, $key, $entry],
                '2.0.0',
                'wcexaap_custom_fields_text_default_value'
            );
        }, 10, 5);
        add_filter('wcexaap_custom_fields_radio_default_value', function ($value, $selects, $ident, $key, $entry) {
            /**
             * @deprecated 2.0.0 Use {@see 'wcexaap_custom_fields_radio_default_value'} instead.
             * @param string $value
             * @param array  $selects
             * @param string $ident
             * @param string $key
             * @param array  $entry
             */
            return apply_filters_deprecated(
                'aap_custom_fields_radio_default_value',
                [$value, $selects, $ident, $key, $entry],
                '2.0.0',
                'wcexaap_custom_fields_radio_default_value'
            );
        }, 10, 5);
        add_filter('wcexaap_custom_fields_checkbox_default_value', function ($value, $selects, $ident, $key, $entry) {
            /**
             * @deprecated 2.0.0 Use {@see 'wcexaap_custom_fields_checkbox_default_value'} instead.
             * @param string $value
             * @param array  $selects
             * @param string $ident
             * @param string $key
             * @param array  $entry
             */
            return apply_filters_deprecated(
                'aap_custom_fields_checkbox_default_value',
                [$value, $selects, $ident, $key, $entry],
                '2.0.0',
                'wcexaap_custom_fields_checkbox_default_value'
            );
        }, 10, 5);
        add_filter('wcexaap_filter_custom_customer_component_container', function ($html) {
            /**
             * @deprecated 2.0.0 Use {@see 'wcexaap_filter_custom_customer_component_container'} instead.
             * @param string $value
             * @param array  $selects
             * @param string $ident
             * @param string $key
             * @param array  $entry
             */
            return apply_filters_deprecated(
                'aap_filter_custom_customer_component_container',
                [$html],
                '2.0.0',
                'wcexaap_filter_custom_customer_component_container'
            );
        }, 10, 1);
        add_filter('wcexaap_filter_custom_member_component_container', function ($html) {
            /**
             * @deprecated 2.0.0 Use {@see 'wcexaap_filter_custom_member_component_container'} instead.
             * @param string $html
             */
            return apply_filters_deprecated(
                'aap_filter_custom_member_component_container',
                [$html],
                '2.0.0',
                'wcexaap_filter_custom_member_component_container'
            );
        }, 10, 1);
        add_filter('wcexaap_filter_custom_field_input', function ($html, $data, $custom_field, $position) {
            /**
             * @deprecated 2.0.0 Use {@see 'wcexaap_filter_custom_field_input'} instead.
             * @param string $html
             * @param array  $data
             * @param string $custom_field
             * @param string $position
             */
            return apply_filters_deprecated(
                'aap_filter_custom_field_input',
                [$html, $data, $custom_field, $position],
                '2.0.0',
                'wcexaap_filter_custom_field_input'
            );
        }, 10, 4);
        add_filter('wcexaap_filter_agree_field', function ($html, $agree_member) {
            /**
             * @deprecated 2.0.0 Use {@see 'wcexaap_filter_agree_field'} instead.
             * @param string $html
             * @param bool   $agree_member
             */
            return apply_filters_deprecated(
                'aap_filter_agree_field',
                [$html, $agree_member],
                '2.0.0',
                'wcexaap_filter_agree_field'
            );
        }, 10, 2);
        add_filter('wcexaap_filter_cart_page_next_buttons', function (
            $html,
            $cartbutton,
            $quickpaybutton,
            $checkout_title,
            $checkout_message,
            $checkout_submessage,
            $qp_message,
            $qp_title,
            $clearfixline
        ) {
            /**
             * @deprecated 2.0.0 Use {@see 'wcexaap_filter_cart_page_next_buttons'} instead.
             * @param string $html
             * @param string $cartbutton
             * @param string $quickpaybutton
             * @param string $checkout_title
             * @param string $checkout_message
             * @param string $checkout_submessage
             * @param string $qp_message
             * @param string $qp_title
             * @param string $clearfixline
             */
            return apply_filters_deprecated(
                'aap_filter_cart_page_next_buttons',
                [
                    $html,
                    $cartbutton,
                    $quickpaybutton,
                    $checkout_title,
                    $checkout_message,
                    $checkout_submessage,
                    $qp_message,
                    $qp_title,
                    $clearfixline,
                ],
                '2.0.0',
                'wcexaap_filter_cart_page_next_buttons'
            );
        }, 10, 9);
        add_filter('wcexaap_filter_couponform_component', function ($vuehtml, $class, $btnclass, $resetbtnclass) {
            /**
             * @deprecated 2.0.0 Use {@see 'wcexaap_filter_couponform_component'} instead.
             * @param string $vuehtml
             * @param string $class
             */
            return apply_filters_deprecated(
                'aap_quickpay_filter_couponform',
                [$vuehtml, $class],
                '2.0.0',
                'wcexaap_filter_couponform_component'
            );
        }, 10, 4);
        add_filter('wcexaap_checkout_review_filter_delivery_form', function ($vuehtml, $instance) {
            /**
             * @deprecated 2.0.0 Use {@see 'wcexaap_checkout_review_filter_delivery_form'} instead.
             * @param string $vuehtml
             */
            return apply_filters_deprecated(
                'aap_quickpay_filter_delivery_form',
                [$vuehtml],
                '2.0.0',
                'wcexaap_checkout_review_filter_delivery_form'
            );
        }, 10, 2);
        add_filter('wcexaap_checkout_review_filter_delivery_method', function ($html, $deli_id) {
            /**
             * @deprecated 2.0.0 Use {@see 'wcexaap_checkout_review_filter_delivery_method'} instead.
             * @param string $html
             * @param int    $deli_id
             */
            return apply_filters_deprecated(
                'aap_quickpay_filter_delivery_method',
                [$html, $deli_id],
                '2.0.0',
                'wcexaap_checkout_review_filter_delivery_method'
            );
        }, 10, 2);
        add_filter('wcexaap_checkout_review_filter_delivery_date', function ($html) {
            /**
             * @deprecated 2.0.0 Use {@see 'wcexaap_checkout_review_filter_delivery_date'} instead.
             * @param string $html
             */
            return apply_filters_deprecated(
                'aap_quickpay_filter_delivery_date',
                [$html],
                '2.0.0',
                'wcexaap_checkout_review_filter_delivery_date'
            );
        }, 10, 1);
        add_filter('wcexaap_checkout_review_filter_delivery_time', function ($html) {
            /**
             * @deprecated 2.0.0 Use {@see 'wcexaap_checkout_review_filter_delivery_time'} instead.
             * @param string $html
             */
            return apply_filters_deprecated(
                'aap_quickpay_filter_delivery_time',
                [$html],
                '2.0.0',
                'wcexaap_checkout_review_filter_delivery_time'
            );
        }, 10, 1);
        add_filter('wcexaap_checkout_review_filter_notes_form', function ($vuehtml) {
            /**
             * @deprecated 2.0.0 Use {@see 'wcexaap_checkout_review_filter_notes_form'} instead.
             * @param string $vuehtml
             */
            return apply_filters_deprecated(
                'aap_quickpay_filter_notes_form',
                [$vuehtml],
                '2.0.0',
                'wcexaap_checkout_review_filter_notes_form'
            );
        }, 10, 1);
        add_filter('wcexaap_checkout_review_filter_ordersummary_table', function ($vuehtml) {
            /**
             * @deprecated 2.0.0 Use {@see 'wcexaap_checkout_review_filter_ordersummary_table'} instead.
             * @param string $vuehtml
             */
            return apply_filters_deprecated(
                'aap_quickpay_filter_ordersummary_table',
                [$vuehtml],
                '2.0.0',
                'wcexaap_checkout_review_filter_ordersummary_table'
            );
        }, 10, 1);
        add_filter('wcexaap_filter_checkout_review_points_form_button_class', function ($btnclass) {
            /**
             * @deprecated 2.0.0 Use {@see 'wcexaap_filter_checkout_review_points_form_button_class'} instead.
             * @param string $btnclass
             */
            return apply_filters_deprecated(
                'aap_filter_quickpay_points_form_button_class',
                [$btnclass],
                '2.0.0',
                'wcexaap_filter_checkout_review_points_form_button_class'
            );
        }, 10, 1);
        add_filter('wcexaap_checkout_review_filter_points_form', function ($vuehtml, $btnclass) {
            /**
             * @deprecated 2.0.0 Use {@see 'wcexaap_checkout_review_filter_points_form'} instead.
             * @param string $vuehtml
             */
            return apply_filters_deprecated(
                'aap_quickpay_filter_pointsform',
                [$vuehtml],
                '2.0.0',
                'wcexaap_checkout_review_filter_points_form'
            );
        }, 10, 2);
        add_filter('wcexaap_checkout_review_filter_display_custom_fields_errors', function ($show) {
            /**
             * @deprecated 2.0.0 Use {@see 'wcexaap_checkout_review_filter_display_custom_fields_errors'} instead.
             * @param bool $show
             */
            return apply_filters_deprecated(
                'aap_quickpay_display_custom_fields_errors',
                [$show],
                '2.0.0',
                'wcexaap_checkout_review_filter_display_custom_fields_errors'
            );
        }, 10, 1);
    }