code: def test_save_load(self):
      self.model.train(self.data, epochs=50)
      self.model.save(self.file_path)
      new_model = FasttextEmbeddingsModel.load(self.file_path)
      assert new_model is not None
      assert isinstance(new_model["word"], np.ndarray)
  
file_path: nlp-architect/tests/test_utils_embedding.py
imports: import numpy
  from nlp_architect.utils.embedding import FasttextEmbeddingsModel
  from nlp_architect.utils.testing import NLPArchitectTestCase
label_desc: Use image node_id 4 for calling the TestFasttextEmbeddingModel obj's underlying member method code with example usage: obj.test_save_load() without return types