code: def test_is_supported(arg, supported):
      assert _aggs_optimized(arg, OPTIMIZED_AGGS) is supported
  
imports: import numpy
  import pandas
  import pytest
  import dask
  from dask import dataframe
  from dask.utils_test import hlg_layer
  import cudf
  import dask_cudf
  from dask_cudf.groupby import OPTIMIZED_AGGS, _aggs_optimized
label_desc: Use image node_id 24 for calling a global function with example usage: test_is_supported(arg, supported) without return types