code: def zincrby(self, key, increment, member):
          
          if not isinstance(increment, (int, float)):
              raise TypeError("increment argument must be int or float")
          fut = self.execute(b'ZINCRBY', key, increment, member)
          return wait_convert(fut, int_or_float)
docs: Increment the score of a member in a sorted set.
  
          :raises TypeError: increment is not float or int