wp-includes/class-wp-customize-widgets.php:1767Filters arguments for dynamic widget partials.
$partial_argsarray|false$partial_idstringarray public function customize_dynamic_partial_args( $partial_args, $partial_id ) { if ( ! current_theme_supports( 'customize-selective-refresh-widgets' ) ) { return $partial_args; } if ( preg_match( '/^widget\[(?P<widget_id>.+)\]$/', $partial_id, $matches ) ) { if ( false === $partial_args ) { $partial_args = array(); } $partial_args = array_merge( $partial_args, array( 'type' => 'widget', 'render_callback' => array( $this, 'render_widget_partial' ), 'container_inclusive' => true, 'settings' => array( $this->get_setting_id( $matches['widget_id'] ) ), 'capability' => 'edit_theme_options', ) ); } return $partial_args; }Introduced in 4.5.0. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/class-wp-customize-widgets.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.