code: def cli(ctx, obj):
      
      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()
docs: Show Alerta server and client versions.