public function READ_args() {
		return array(
			'id' => array(
				'type'              => 'integer',
				'in'                => 'path',
				'description'       => __( 'The attendee post ID', 'event-tickets' ),
				'required'          => true,
				/**
				 * Here we check for a positive int, not an attendee ID to properly
				 * return 404 for missing post in place of 400.
				 */
				'validate_callback' => array( $this->validator, 'is_positive_int' ),
			),
		);
	}