public function get_collection_params() {

		$params = parent::get_collection_params();

		$params['post_in'] = array(
			'description' => __( 'Retrieve only instructors for the specified course(s) and/or membership(s). Accepts a single WP Post ID or a comma separated list of IDs.', 'lifterlms' ),
			'type'        => 'array',
			'items'       => array(
				'type' => 'integer',
			),
		);

		$params['post_not_in'] = array(
			'description' => __( 'Exclude instructors who do not have permissions for the specified course(s) and/or membership(s). Accepts a single WP Post ID or a comma separated list of IDs.', 'lifterlms' ),
			'type'        => 'array',
			'items'       => array(
				'type' => 'integer',
			),
		);

		return $params;

	}