code: def export() -> None:
      test_cases = {
          "at_back": [np.array([10, 11, 12]).astype(np.int64)],
          "at_front": [
              np.array([-2, -1, 0]),
              np.array([0]).astype(np.int64),
          ],
      }
      sequence = [
          np.array([1, 2, 3, 4]).astype(np.int64),
          np.array([5, 6, 7]).astype(np.int64),
          np.array([8, 9]).astype(np.int64),
      ]
  
      for test_name, test_inputs in test_cases.items():
          tensor = test_inputs[0].astype(np.int64)
  
          if len(test_inputs) > 1:
              node = onnx.helper.make_node(
                  "SequenceInsert",
                  inputs=["sequence", "tensor", "position"],
                  outputs=["output_sequence"],
              )
              position = test_inputs[1]
              inserted = sequence_insert_reference_implementation(
                  sequence, tensor, position
              )
              expect(
                  node,
                  inputs=[sequence, tensor, position],
                  outputs=[inserted],
                  name="test_sequence_insert_" + test_name,
              )
          else:
              node = onnx.helper.make_node(
                  "SequenceInsert",
                  inputs=["sequence", "tensor"],
                  outputs=["output_sequence"],
              )
              inserted = sequence_insert_reference_implementation(
                  sequence, tensor
              )
              expect(
                  node,
                  inputs=[sequence, tensor],
                  outputs=[inserted],
                  name="test_sequence_insert_" + test_name,
              )
  
file_path: onnx/onnx/backend/test/case/node/sequenceinsert.py
imports: from typing import Any, List
  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 SequenceInsert obj's underlying member method code with example usage: obj.export() without return types