code: def _export_maybe_limbs(tensor, dtype):
      assert isinstance(tensor, tf_big.Tensor), type(tensor)
      if dtype == tf.string:
          return tf_big.export_tensor(tensor, dtype=dtype)
      return tf_big.export_limbs_tensor(tensor, dtype=dtype)
  
imports: from typing import Optional
  from typing import Tuple
  import tensorflow
  import tf_big
label_desc: Use image node_id 2 for calling a global function with example usage: _export_maybe_limbs(tensor, dtype) and returns: tf_big, tf_big