code: def test_get_dependencies_empty():
      dsk = {"x": (inc,)}
      assert get_dependencies(dsk, "x") == set()
      assert get_dependencies(dsk, "x", as_list=True) == []
  
imports: import pickle
  from collections import namedtuple
  import pytest
  from flash.core.serve.dag.task import flatten, get, get_dependencies, get_deps, istask, literal, preorder_traversal, quote, subs
  from flash.core.serve.dag.utils_test import add, inc
  from flash.core.utilities.imports import _TOPIC_SERVE_AVAILABLE
label_desc: Use image node_id 5 for calling a global function with example usage: test_get_dependencies_empty() without return types