langchain/embeddings/tensorflow_hub.py/TensorflowHubEmbeddings/__init__
class TensorflowHubEmbeddings:    def __init__(self, **kwargs: Any):
        """Initialize the tensorflow_hub and tensorflow_text."""
        super().__init__(**kwargs)
        try:
            import tensorflow_hub
        except ImportError:
            raise ImportError(
                "Could not import tensorflow-hub python package. "
                "Please install it with `pip install tensorflow-hub``."
            )
        try:
            import tensorflow_text  # noqa
        except ImportError:
            raise ImportError(
                "Could not import tensorflow_text python package. "
                "Please install it with `pip install tensorflow_text``."
            )

        self.embed = tensorflow_hub.load(self.model_url)