def parse_singular_param_to_enum()

in azure/functions/decorators/utils.py [0:0]

• 12 lines of code
• 4 McCabe index (conditional complexity)

def parse_singular_param_to_enum(param: Optional[Union[T, str]],
                                 class_name: Type[T]) -> Optional[T]:
    if param is None:
        return None
    if isinstance(param, str):
        try:
            return class_name[param.upper()]
        except KeyError:
            raise KeyError(
                f"Can not parse str '{param}' to {class_name.__name__}. "
                f"Allowed values are {[e.name for e in class_name]}")

    return param