public function getInternalArgument($argumentName)
    {
        return (isset($this->internalArguments[$argumentName]) ? $this->internalArguments[$argumentName] : null);
    }
public function getInternalArgument($argumentName)
    {
        return (isset($this->internalArguments[$argumentName]) ? $this->internalArguments[$argumentName] : null);
    }
public function getInternalArgument ( $ argumentName ) { return ( isset ( $ this -> internalArguments [ $ argumentName ] ) ? $ this -> internalArguments [ $ argumentName ] : null ) ; }
Returns the value of the specified internal argument.

Internal arguments are set via setArgument(). In order to be handled as an
internal argument, its name must start with two underscores.

@param string $argumentName Name of the argument, for example "__fooBar"
@return string Value of the argument, or NULL if not set.
Returns the value of the specified internal argument .