def available_templates(value):
    """Scan for available templates in effect_templates"""
    templates = list_templates()

    if value not in templates:
        raise ArgumentTypeError("Effect template '{}' does not exist.\n Available templates: {} ".format(
            value, ", ".join(templates)))

    return value
def available_templates(value):
    
    templates = list_templates()

    if value not in templates:
        raise ArgumentTypeError("Effect template '{}' does not exist.\n Available templates: {} ".format(
            value, ", ".join(templates)))

    return value
def available_templates ( value ) : templates = list_templates ( ) if value not in templates : raise ArgumentTypeError ( "Effect template '{}' does not exist.\n Available templates: {} " . format ( value , ", " . join ( templates ) ) ) return value
Scan for available templates in effect_templates
Scan for available templates in effect_templates