code: def listBlockParents(self, **kwargs):
          
          validParameters = ['block_name']
  
          requiredParameters = {'forced': validParameters}
          checkInputParameter(method="listBlockParents", parameters=kwargs.keys(), validParameters=validParameters,
                              requiredParameters=requiredParameters)
          if isinstance(kwargs["block_name"], list):
              return self.__callServer("blockparents", data=kwargs, callmethod='POST')
          else:
              return self.__callServer("blockparents", params=kwargs)
docs: API to list block parents.
  
          :param block_name: name of block who's parents needs to be found (Required)
          :type block_name: str
          :returns: List of dictionaries containing following keys (block_name)
          :rtype: list of dicts