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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 show_inputs(client, workflow):
 """Show workflow inputs and exit."""

    for input_ in workflow.inputs:
        click.echo(
            '{id}: {default}'.format(
                id=input_.id,
                default=_format_default(client, input_.default),
            )
        )
    sys.exit(0)