code: def apply_flat_fun_nokwargs(fun, io_tree, py_args):
      in_tree_expected, out_tree = io_tree
      args, in_tree = tree_flatten(py_args)
      if in_tree != in_tree_expected:
          raise TypeError(f"Expected {in_tree_expected}, got {in_tree}")
      ans = fun(*args)
      return tree_unflatten(out_tree, ans)
  
imports: from __future__ import annotations
  from collections.abc import Iterable, Sequence
  import inspect
  import operator
  from functools import partial
  from typing import Any, Callable
  import warnings
  import numpy
  from jax._src import core
  from jax._src import dtypes
  from jax._src.abstract_arrays import numpy_scalar_types
  from jax._src.core import ShapedArray
  from jax._src.tree_util import PyTreeDef, tree_flatten, tree_unflatten, tree_map, tree_structure, treedef_children, generate_key_paths, keystr, broadcast_prefix, prefix_errors
  from jax._src.tree_util import _replace_nones
  from jax._src import linear_util
  from jax._src.linear_util import TracingDebugInfo
  from jax._src.util import safe_map, WrapKwArgs, Hashable, HashableFunction, Unhashable
  from jax._src import traceback_util
label_desc: Use image node_id 8 for calling a global function with example usage: apply_flat_fun_nokwargs(fun, io_tree, py_args) and returns: tree_unflatten