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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 shell(self):
 """ Spawn a debug shell. """

        click.echo(click.style("NOTICE!", fg="yellow", bold=True) + " This is a " + click.style("local", fg="green", bold=True) + " shell, inside a " + click.style("Zappa", bold=True) + " object!")
        self.zappa.shell()
        return