code: def copy(self, *, continuations: List[memoryview] = None,
               expected: Sequence[Type['Parseable']] = None,
               list_expected: Sequence[Type['Parseable']] = None,
               command_name: bytes = None,
               uid: bool = None,
               charset: str = None,
               tag: bytes = None,
               max_append_len: int = None,
               allow_continuations: bool = None) -> 'Params':
          
          kwargs: Dict[str, Any] = {}
          self._set_if_none(kwargs, 'continuations', continuations)
          self._set_if_none(kwargs, 'expected', expected)
          self._set_if_none(kwargs, 'list_expected', list_expected)
          self._set_if_none(kwargs, 'command_name', command_name)
          self._set_if_none(kwargs, 'uid', uid)
          self._set_if_none(kwargs, 'charset', charset)
          self._set_if_none(kwargs, 'tag', tag)
          self._set_if_none(kwargs, 'max_append_len', max_append_len)
          self._set_if_none(kwargs, 'allow_continuations', allow_continuations)
          return Params(**kwargs)
docs: Copy the parameters, possibly replacing a subset.