docs: def remove_parameter(self, name):
  		""" Remove parameter from this query. If a parameter is mandatory, then exception is raised
  
  		:param name: parameter name to remove
  		:return: None
  		"""
  		spec = self.__specs[name] if name in self.__specs else None
  		if spec is not None and spec.optional() is False:
  			raise ValueError('Unable to remove a required parameter "%s"' % name)
  
  		WURIQuery.remove_parameter(self, name)