code: def tuples2ids(tuples, ids):
      
      for value in tuples:
          if value[0] == 6 and value[2]:
              ids = value[2]
          elif value[0] == 5:
              ids[:] = []
          elif value[0] == 4 and value[1] and value[1] not in ids:
              ids.append(value[1])
          elif value[0] == 3 and value[1] and value[1] in ids:
              ids.remove(value[1])
      return ids
docs: Update `ids` according to `tuples`, e.g. (3, 0, X), (4, 0, X)...