public function get_metadata() {
		// Fetching the meta-data for the first time.
		if ( is_null( $this->metadata ) ) {
			$this->metadata = $this->fetch_metadata();
		}

		return $this->metadata;
	}
public function get_metadata() {
		// Fetching the meta-data for the first time.
		if ( is_null( $this->metadata ) ) {
			$this->metadata = $this->fetch_metadata();
		}

		return $this->metadata;
	}
public function get_metadata ( ) { // Fetching the meta-data for the first time. if ( is_null ( $ this -> metadata ) ) { $ this -> metadata = $ this -> fetch_metadata ( ) ; } return $ this -> metadata ; }
Get all metadata of this object.

@return array
Get all metadata of this object .