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#!/usr/bin/env python3
import logging
from typing import Any, Optional
logger = logging.getLogger(__name__)
def unwrap_optional(x: Optional[Any]) -> Any:
"""Unwrap an Optional[Type] argument returning a Type value back.
If the Optional[Type] argument is None, however, raise an exception.
Use this to satisfy most type checkers that a value that could
be None isn't so as to drop the Optional.
"""
if x is None:
msg = 'Argument to unwrap_optional was unexpectedly None'
logger.critical(msg)
raise AssertionError(msg)
return x
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