code: def expect_date(request, monkeypatch):
      sde, expect = request.param
      with monkeypatch.context() as m:
          if sde:
              m.setenv("SOURCE_DATE_EPOCH", sde)
          else:
              m.delenv("SOURCE_DATE_EPOCH", raising=False)
          yield expect
  
label_desc: Use image node_id 1 for calling a global function with example usage: expect_date(request, monkeypatch) without return types