code: def is_empty(self):
          
          if len(self.data) == 0:
              return True
          for v in self.data.values():
              if is_sequence(v):
                  if len(v) == 0:
                      return True
                  else:
                      return False
              elif bool(np.isreal(v)):
                  return False
          return True
docs: Is the current DataStore empty or not.
  
          Returns
          ----------
          empty: bool, False if there are items in the DataStore