code: def test_model_from_pretrained(self):
      for model_class_name in self.all_model_classes:
          model = model_class_name.from_pretrained(
              "openlm-research/open_llama_3b_v2", from_pt=True
          )
          outputs = model(np.ones((1, 1)))
          self.assertIsNotNone(outputs)
  
imports: import unittest
  import numpy
  from transformers import LlamaConfig, is_flax_available, is_tokenizers_available
  from transformers.testing_utils import require_flax, slow
  from ...generation.test_flax_utils import FlaxGenerationTesterMixin
  from ...test_modeling_flax_common import FlaxModelTesterMixin, ids_tensor
label_desc: Use image node_id 4 for calling the FlaxLlamaModelTest obj's underlying member method code with example usage: obj.test_model_from_pretrained() without return types