Method get_deprecated

mypy/semanal.py:1399–1407

(expression: Expression)

    @staticmethod
    def get_deprecated(expression: Expression) -> str | None:
        if (
            isinstance(expression, CallExpr)
            and refers_to_fullname(expression.callee, DEPRECATED_TYPE_NAMES)
            and (len(args := expression.args) >= 1)
            and isinstance(deprecated := args[0], StrExpr)
        ):
            return deprecated.value
        return None

    def process_overload_impl(self, defn: OverloadedFuncDef) -> None:
        """Set flags for an overload implementation.