code: def test_get_dependencies_empty():
      dsk = {"x": (inc,)}
      assert get_dependencies(dsk, "x") == set()
      assert get_dependencies(dsk, "x", as_list=True) == []
  
imports: from __future__ import annotations
  import pickle
  from collections import namedtuple
  import pytest
  from dask.core import flatten, get, get_dependencies, get_deps, getcycle, has_tasks, ishashable, iskey, istask, literal, preorder_traversal, quote, subs, validate_key
  from dask.utils_test import GetFunctionTestMixin, add, inc
label_desc: Use image node_id 11 for calling a global function with example usage: test_get_dependencies_empty() without return types