code: def export() -> None:
      node = onnx.helper.make_node(
          "Reciprocal",
          inputs=["x"],
          outputs=["y"],
      )
  
      x = np.array([-4, 2]).astype(np.float32)
      y = np.reciprocal(x)  # expected output [-0.25, 0.5],
      expect(
          node, inputs=[x], outputs=[y], name="test_reciprocal_example"
      )
  
      x = np.random.rand(3, 4, 5).astype(np.float32) + 0.5
      y = np.reciprocal(x)
      expect(node, inputs=[x], outputs=[y], name="test_reciprocal")
  
imports: import numpy
  import onnx
  from onnx.backend.test.case.base import Base
  from onnx.backend.test.case.node import expect
label_desc: Use image node_id 1 for calling the Reciprocal obj's underlying member method code with example usage: obj.export() without return types