code: def test_init_no_id(self):
      environment_entity = Environment(self.input_dict)
  
      for k, v in self.input_dict.items():
          assert getattr(environment_entity, k) == v
      assert environment_entity.id == None
      assert environment_entity.name == None
      assert environment_entity.description == None
      assert environment_entity.created_at
      assert environment_entity.updated_at
  
imports: from datmo.core.entity.environment import Environment
label_desc: Use image node_id 2 for calling the TestEnvironment obj's underlying member method code with example usage: obj.test_init_no_id() without return types