public function _input_id( $suffix = '' ) {
		return $this->field->id() . $suffix . ( $this->field->is_repeatable() ? '_' . $this->iterator : '' );
	}
public function _input_id( $suffix = '' ) {
		return $this->field->id() . $suffix . ( $this->field->is_repeatable() ? '_' . $this->iterator : '' );
	}
public function _input_id ( $ suffix = '' ) { return $ this -> field -> id ( ) . $ suffix . ( $ this -> field -> is_repeatable ( ) ? '_' . $ this -> iterator : '' ) ; }
Generate the ID attribute.

@param  string $suffix
@return string
Generate the ID attribute .