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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 convert_concat(node, **kwargs):
 """Map MXNet's Concat operator attributes to onnx's Concat operator and return the created node. """

    name, input_nodes, attrs = get_inputs(node, kwargs)

    axis = int(attrs.get("dim", 1))
    concat_node = onnx.helper.make_node(
        "Concat",
        input_nodes,
        [name],
        axis=axis,
        name=name
    )
    return [concat_node]