code: def test_order_doesnt_fail_on_mixed_type_keys(abcde):
      order(
          {"x": (inc, 1), ("y", 0): (inc, 2), "z": (add, "x", ("y", 0))}
      )
  
imports: from __future__ import annotations
  import inspect
  import pytest
  import dask
  from dask import delayed
  from dask.base import collections_to_dsk, key_split, visualize_dsk
  from dask.core import get_deps
  from dask.order import _connecting_to_roots, diagnostics, ndependencies, order
  from dask.utils_test import add, inc
label_desc: Use image node_id 13 for calling a global function with example usage: test_order_doesnt_fail_on_mixed_type_keys(abcde) without return types