def get_value_condition(self, parameter_id=None):
pass<EOL>
Gets a value condition for the given parameter.

        arg:    parameter_id (osid.id.Id): the ``Id`` of a ``Parameter``
        return: (osid.configuration.ValueCondition) - a value condition
        raise:  NullArgument - ``parameter_id`` is ``null``
        *compliance: mandatory -- This method must be implemented.*