code: def assert_shallow_structure(
      shallow_tree,
      input_tree,
      check_types=True,
      expand_composites=False,
  ):
      """Asserts that `shallow_tree` is a shallow structure of `input_tree`.
  
      That is, this function tests if the `input_tree` structure can be created from
      the `shallow_tree` structure by replacing its leaf nodes with deeper
      tree structures.
  
      Examples:
  
      The following code will raise an exception:
      ```python
        shallow_tree = {"a": "A", "b": "B"}
        input_tree = {"a": 1, "c": 2}
        assert_shallow_structure(shallow_tree, input_tree)
      ```
  
      The following code will raise an exception:
      ```python
        shallow_tree = ["a", "b"]
        input_tree = ["c", ["d", "e"], "f"]
        assert_shallow_structure(shallow_tree, input_tree)
      ```
  
      Args:
        shallow_tree: an arbitrarily nested structure.
        input_tree: an arbitrarily nested structure.
        check_types: if `True` (default) the sequence types of `shallow_tree` and
          `input_tree` have to be the same. Note that even with check_types==True,
          this function will consider two different namedtuple classes with the same
          name and _fields attribute to be the same class.
        expand_composites: If true, then composite tensors such as
          `tf.sparse.SparseTensor` and `tf.RaggedTensor` are expanded into their
          component tensors.
      Raises:
        TypeError: If `shallow_tree` is a sequence but `input_tree` is not.
        TypeError: If the sequence types of `shallow_tree` are different from
          `input_tree`. Only raised if `check_types` is `True`.
        ValueError: If the sequence lengths of `shallow_tree` are different from
          `input_tree`.
      """
      nest_util.assert_shallow_structure(
          nest_util.Modality.CORE,
          shallow_tree,
          input_tree,
          check_types,
          expand_composites,
      )
  
imports: from tensorflow.python.util import _pywrap_nest
  from tensorflow.python.util import _pywrap_utils
  from tensorflow.python.util import nest_util
  from tensorflow.python.util.tf_export import tf_export
label_desc: Use image node_id 16 for calling a global function with example usage: assert_shallow_structure(shallow_tree, input_tree, check_types, expand_composites) without return types