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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 invoke(config, name, input):
 """ Invoke function in AWS """

    # options should override config if it is there
    myname = name or config.name

    click.echo('Invoking ' + myname)
    output = lambder.invoke_function(myname, input)
    click.echo(output)