public function close( Line$closerLine ):string
	{
		if( isset($this->config['close_by']) && $closerLine->indentLevel==$this->line->indentLevel ){
			foreach( $this->config['close_by'] as $key=>$value ){
				if( $closerLine->pregMatch($key) ){
					return $this->withParam($value);
				}
			}
		}

		if( isset($this->config['closer']) )
			{ return $this->withParam($this->config['closer']); }

		return '';
	}