code: def test_arg_reductions_unknown_single_chunksize(func):
      x = da.ones((10, 10), chunks=(10, 10))
      x = x[x[0, :] > 0, :]  # unknown chunks in first dimension only
  
      getattr(da, func)(x, axis=0).compute()
      getattr(da, func)(x, axis=1).compute()
  
imports: from __future__ import annotations
  import os
  import warnings
  from contextlib import nullcontext
  from itertools import permutations, zip_longest
  import pytest
  import itertools
  import dask.array
  import dask.config
  from dask.array.numpy_compat import ComplexWarning, _numpy_122
  from dask.array.utils import assert_eq, same_keys
  from dask.core import get_deps
label_desc: Use image node_id 15 for calling a global function with example usage: test_arg_reductions_unknown_single_chunksize(func) without return types