public function clear()
    {
        $this->places = [];
        $this->transitions = [];
        $this->initialPlace = null;
        $this->metadataStore = null;

        return $this;
    }
public function clear()
    {
        $this->places = [];
        $this->transitions = [];
        $this->initialPlace = null;
        $this->metadataStore = null;

        return $this;
    }
public function clear ( ) { $ this -> places = [ ] ; $ this -> transitions = [ ] ; $ this -> initialPlace = null ; $ this -> metadataStore = null ; return $ this ; }
Clear all data in the builder.

@return $this
Clear all data in the builder .