code: def get_parameter_names(self, include_frozen=False):
          
          if include_frozen:
              return self.parameter_names
          return tuple(p
                       for p, f in zip(self.parameter_names, self.unfrozen_mask)
                       if f)
docs: Get a list of the parameter names
  
          Args:
              include_frozen (Optional[bool]): Should the frozen parameters be
                  included in the returned value? (default: ``False``)