How to use the aioredis.util._NOTSET function in aioredis

    def client_getname(self, encoding=_NOTSET):
        """Get the current connection name."""
        return self.execute(b'CLIENT', b'GETNAME', encoding=encoding)

def zrange(self, key, start=0, stop=-1, withscores=False,
               encoding=_NOTSET):
        """Return a range of members in a sorted set, by index.

        :raises TypeError: if start is not int
        :raises TypeError: if stop is not int
        """
        if not isinstance(start, int):
            raise TypeError("start argument must be int")
        if not isinstance(stop, int):
            raise TypeError("stop argument must be int")
        if withscores:
            args = [b'WITHSCORES']
        else:
            args = []
        fut = self.execute(b'ZRANGE', key, start, stop, *args,
                           encoding=encoding)
        if withscores:

    def brpop(self, key, *keys, timeout=0, encoding=_NOTSET):
        """Remove and get the last element in a list, or block until one
        is available.

        :raises TypeError: if timeout is not int
        :raises ValueError: if timeout is less than 0
        """
        if not isinstance(timeout, int):
            raise TypeError("timeout argument must be int")
        if timeout < 0:
            raise ValueError("timeout must be greater equal 0")
        args = keys + (timeout,)
        return self.execute(b'BRPOP', key, *args, encoding=encoding)

    def blpop(self, key, *keys, timeout=0, encoding=_NOTSET):
        """Remove and get the first element in a list, or block until
        one is available.

        :raises TypeError: if timeout is not int
        :raises ValueError: if timeout is less than 0
        """
        if not isinstance(timeout, int):
            raise TypeError("timeout argument must be int")
        if timeout < 0:
            raise ValueError("timeout must be greater equal 0")
        args = keys + (timeout,)
        return self.execute(b'BLPOP', key, *args, encoding=encoding)

    def execute(self, command, *args, encoding=_NOTSET):
        """Executes redis command and returns Future waiting for the answer.

        Raises:
        * TypeError if any of args can not be encoded as bytes.
        * ReplyError on redis '-ERR' resonses.
        * ProtocolError when response can not be decoded meaning connection
          is broken.
        """
        if self._reader is None or self._reader.at_eof():
            raise ConnectionClosedError("Connection closed or corrupted")
        if command is None:
            raise TypeError("command must not be None")
        if None in set(args):
            raise TypeError("args must not contain None")
        command = command.upper().strip()
        is_pubsub = command in _PUBSUB_COMMANDS

def zrangebyscore(self, key, min=float('-inf'), max=float('inf'),
                      withscores=False, offset=None, count=None,
                      *, exclude=None, encoding=_NOTSET):
        """Return a range of members in a sorted set, by score.

        :raises TypeError: if min or max is not float or int
        :raises TypeError: if both offset and count are not specified
        :raises TypeError: if offset is not int
        :raises TypeError: if count is not int
        """
        if not isinstance(min, (int, float)):
            raise TypeError("min argument must be int or float")
        if not isinstance(max, (int, float)):
            raise TypeError("max argument must be int or float")

        if (offset is not None and count is None) or \
                (count is not None and offset is None):
            raise TypeError("offset and count must both be specified")
        if offset is not None and not isinstance(offset, int):

def ping(self, message=_NOTSET, *, encoding=_NOTSET):
        """Ping the server.

        Accept optional echo message.
        """
        if message is not _NOTSET:
            args = (message,)
        else:
            args = ()
        return self.execute('PING', *args, encoding=encoding)

async def hgetall_async(key: str, *, decode: bool = True) -> dict:
    await _set_redis_client_async_if_necessary()
    return await async_redis_client.hgetall(key, encoding="utf8" if decode else aioredis.util._NOTSET)