public function addPhpArgument($phpArgument)
    {
        if ($this->phpArguments === null) {
            $this->phpArguments = [];
        }
        $this->phpArguments[] = $phpArgument;

        return $this;
    }
public function addPhpArgument($phpArgument)
    {
        if ($this->phpArguments === null) {
            $this->phpArguments = [];
        }
        $this->phpArguments[] = $phpArgument;

        return $this;
    }
@param string $phpArgument

@return $this