code: def broadcast_structures(*args: Any) -> Any:
      """Returns versions of the arguments that give them the same nested structure.
  
      Any nested items in *args must have the same structure.
  
      Any non-nested item will be replaced with a nested version that shares that
      structure. The leaves will all be references to the same original non-nested
      item.
  
      If all *args are nested, or all *args are non-nested, this function will
      return *args unchanged.
  
      Example:
      ```
      a = ('a', 'b')
      b = 'c'
      tree_a, tree_b = broadcast_structure(a, b)
      tree_a
      > ('a', 'b')
      tree_b
      > ('c', 'c')
      ```
  
      Args:
        *args: A Sequence of nested or non-nested items.
  
      Returns:
        `*args`, except with all items sharing the same nest structure.
      """
      if not args:
          return
  
      reference_tree = None
      for arg in args:
          if tree.is_nested(arg):
              reference_tree = arg
              break
  
      # If reference_tree is None then none of args are nested and we can skip over
      # the rest of this function, which would be a no-op.
      if reference_tree is None:
          return args
  
      def mirror_structure(value, reference_tree):
          if tree.is_nested(value):
              # Use check_types=True so that the types of the trees we construct aren't
              # dependent on our arbitrary choice of which nested arg to use as the
              # reference_tree.
              tree.assert_same_structure(
                  value, reference_tree, check_types=True
              )
              return value
          else:
              return tree.map_structure(lambda _: value, reference_tree)
  
      return tuple(
          mirror_structure(arg, reference_tree) for arg in args
      )
  
file_path: acme/acme/utils/tree_utils.py
imports: from typing import Sequence, List, TypeVar, Any
  import numpy
  import tree
label_desc: Use image node_id 5 for calling a global function with example usage: broadcast_structures() and returns: tuple, args, value, tree