code: def test_model_from_pretrained(self):
      for model_class_name in self.all_model_classes:
          model = model_class_name.from_pretrained("EleutherAI/gptj-6B")
          outputs = model(np.ones((1, 1)))
          self.assertIsNotNone(outputs)
  
imports: import tempfile
  import unittest
  import numpy
  import transformers
  from transformers import GPT2Tokenizer, GPTJConfig, is_flax_available, is_torch_available
  from transformers.testing_utils import is_pt_flax_cross_test, require_flax, tooslow
  from ...generation.test_generation_flax_utils import FlaxGenerationTesterMixin
  from ...test_modeling_flax_common import FlaxModelTesterMixin, ids_tensor, random_attention_mask
label_desc: Use image node_id 7 for calling the FlaxGPTJModelTest obj's underlying member method code with example usage: obj.test_model_from_pretrained() without return types