code: def test_never_type():
      assert InvalidType().assign(1) == InvalidType()
      assert InvalidType().assign("a") == InvalidType()
      assert InvalidType().assign(True) == InvalidType()
      assert InvalidType().assign(None) == InvalidType()
  
imports: import datetime
  import numpy
  import pytest
  import wandb
  from wandb import data_types
  from wandb.sdk.data_types._dtypes import AnyType, BooleanType, ConstType, InvalidType, ListType, NoneType, NumberType, OptionalType, StringType, TimestampType, TypedDictType, TypeRegistry, UnionType, UnknownType
label_desc: Use image node_id 7 for calling a global function with example usage: test_never_type() without return types