protected function get_metadata( $object_id, $meta_key = '', $single = false ) {
		return get_metadata( $this->meta_type, $object_id, $meta_key, $single );
	}
protected function get_metadata( $object_id, $meta_key = '', $single = false ) {
		return get_metadata( $this->meta_type, $object_id, $meta_key, $single );
	}
protected function get_metadata ( $ object_id , $ meta_key = '' , $ single = false ) { return get_metadata ( $ this -> meta_type , $ object_id , $ meta_key , $ single ) ; }
Wrapper method for get_metadata that can be overridden in sub classes.

@param int    $object_id ID of the object the metadata is for.
@param string $meta_key  Optional. Metadata key. If not specified,
retrieve all metadata for the specified object.
@param bool   $single    Optional, default is false. If true, return only
the first value of the specified meta_key. This
parameter has no effect if meta_key is not
specified.

@return mixed Single metadata value, or array of values.
Wrapper method for get_metadata that can be overridden in sub classes .