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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def create_helper_trans_node(op_name, input_node, node_name):
 """create extra transpose node for dot operator"""

    node_name = op_name + "_" + node_name
    trans_node = onnx.helper.make_node(
        'Transpose',
        inputs=[input_node],
        outputs=[node_name],
        name=node_name
    )
    return trans_node