Method _raise_for_expected

lib/sqlalchemy/sql/coercions.py:680–715

(
        self,
        element: Any,
        argname: Optional[str] = None,
        resolved: Optional[Any] = None,
        *,
        advice: Optional[str] = None,
        code: Optional[str] = None,
        err: Optional[Exception] = None,
        **kw: Any,
    )

    __slots__ = ()

    def _raise_for_expected(
        self,
        element: Any,
        argname: Optional[str] = None,
        resolved: Optional[Any] = None,
        *,
        advice: Optional[str] = None,
        code: Optional[str] = None,
        err: Optional[Exception] = None,
        **kw: Any,
    ) -> NoReturn:
        if (
            not advice
            and isinstance(element, roles.SelectStatementRole)
            or isinstance(resolved, roles.SelectStatementRole)
        ):
            advice = (
                "To create a "
                "FROM clause from a %s object, use the .subquery() method."
                % (resolved.__class__ if resolved is not None else element,)
            )
            code = "89ve"
        else:
            code = None

        super()._raise_for_expected(
            element,
            argname=argname,
            resolved=resolved,
            advice=advice,
            code=code,
            err=err,
            **kw,
        )
        # never reached
        assert False


class HasCacheKeyImpl(RoleImpl):