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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 create(gandi, resource, domain, duration, owner, admin, tech, bill, nameserver, extra_parameter, background):
 """Buy a domain."""

    if domain:
        gandi.echo('/!\ --domain option is deprecated and will be removed '
                   'upon next release.')
        gandi.echo("You should use 'gandi domain create %s' instead." % domain)

    if (domain and resource) and (domain != resource):
        gandi.echo('/!\ You specified both an option and an argument which '
                   'are different, please choose only one between: %s and %s.'
                   % (domain, resource))
        return

    _domain = domain or resource
    if not _domain:
        _domain = click.prompt('Name of the domain')

    result = gandi.domain.create(_domain, duration, owner, admin, tech, bill,
                                 nameserver, extra_parameter, background)
    if background:
        gandi.pretty_echo(result)

    return result