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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_app(applet_id, applet_name, src_dir, publish=False, set_default=False, billTo=None, try_versions=None, try_update=True, confirm=True, regional_options=None):
 """ Creates a new app object from the specified applet. .. deprecated:: 0.204.0 Use :func:`create_app_multi_region()` instead. """

    # In this case we don't know the region of the applet, so we use the
    # legacy API {"applet": applet_id} without specifying a region
    # specifically.
    return _create_app(dict(applet=applet_id), applet_name, src_dir, publish=publish, set_default=set_default,
                       billTo=billTo, try_versions=try_versions, try_update=try_update, confirm=confirm)