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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 cli(ctx, obj):
 """Show Alerta server and client versions."""

    client = obj['client']
    click.echo('alerta {}'.format(client.mgmt_status()['version']))
    click.echo('alerta client {}'.format(client_version))
    click.echo('requests {}'.format(requests_version))
    click.echo('click {}'.format(click.__version__))
    ctx.exit()