async def test_function_returning_empty_dict():
  """Test that the function returns with empty dict actually returning empty dict."""
  tool = FunctionTool(function_returning_empty_dict)
  result = await tool.run_async(args={}, tool_context=MagicMock())
  assert isinstance(result, dict)
Test that the function returns with empty dict actually returning empty dict.
tests/unittests/tools/test_function_tool.py