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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(net, node, module, builder):
 """Convert concat layer from mxnet to coreml. Parameters network: net A mxnet network object. layer: node Node to convert. module: module An module for MXNet builder: NeuralNetworkBuilder A neural network builder object. """

    # Get input and output names
    input_names, output_name = _get_input_output_name(net, node, 'all')
    name = node['name']
    mode = 'CONCAT'
    builder.add_elementwise(name = name, input_names = input_names,
            output_name = output_name, mode = mode)