eventespresso / event-espresso-core

	 * @return \EE_messenger

	 * @throws \EE_Error

	 */

	public function valid_messenger( $messenger_name ) {

		$messenger = $this->get_messenger( $messenger_name );

		if ( $messenger instanceof EE_messenger ) {

			return $messenger;

		}

		throw new EE_Error(

			sprintf(

				__( 'The "%1$s" messenger is either invalid or not installed', 'event_espresso' ),

				$messenger_name

			)

		);

	}

	 * @return \EE_message_type

	 * @throws \EE_Error

	 */

	public function valid_message_type( $message_type_name ) {

		$message_type = $this->get_message_type( $message_type_name );

		if ( $message_type instanceof EE_message_type ) {

			return $message_type;

		}

		throw new EE_Error(

			sprintf(

				__( 'The "%1$s" message type is either invalid or not installed', 'event_espresso' ),

				$message_type_name

			)

		);

	}