WP_Ability_Categories_Registry::get_instance(): WP_Ability_Categories_Registry|null

Source

public static function get_instance(): ?self {
	if ( ! did_action( 'init' ) ) {
		_doing_it_wrong(
			__METHOD__,
			sprintf(
				// translators: %s: init action.
				__( 'Ability API should not be initialized before the %s action has fired.' ),
				'<code>init</code>'
			),
			'6.9.0'
		);
		return null;
	}

	if ( null === self::$instance ) {
		self::$instance = new self();

		/**
		 * Fires when preparing ability categories registry.
		 *
		 * Ability categories should be registered on this action to ensure they're available when needed.
		 *
		 * @since 6.9.0
		 *
		 * @param WP_Ability_Categories_Registry $instance Ability categories registry object.
		 */
		do_action( 'wp_abilities_api_categories_init', self::$instance );
	}

	return self::$instance;
}

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