code: def export_default_old() -> None:
      node = onnx.helper.make_node(
          "Dropout",
          inputs=["x"],
          outputs=["y"],
      )
  
      x = np.array([-1, 0, 1]).astype(np.float32)
      y = x
      expect(
          node,
          inputs=[x],
          outputs=[y],
          name="test_dropout_default_old",
          opset_imports=[helper.make_opsetid("", 11)],
      )
  
file_path: onnx/onnx/backend/test/case/node/dropout.py
imports: import numpy
  import onnx
  from onnx import helper
  from onnx.backend.test.case.base import Base
  from onnx.backend.test.case.node import expect
label_desc: Use image node_id 11 for calling the Dropout obj's underlying member method code with example usage: obj.export_default_old() without return types