originalFile: KtFile,
        nameExpression: KtSimpleNameExpression,
        explicitReceiver: KtExpression?
    ): KtCompletionExtensionCandidateChecker {
        throw NotImplementedError("Method is not implemented for FE 1.0")
    }

    @Suppress("OVERRIDE_DEPRECATION")
    override fun checkExtensionFitsCandidate(
        firSymbolForCandidate: KtCallableSymbol,
        originalFile: KtFile,

    override val analysisSession: KtAnalysisSession,
) : KtKlibSourceFileNameProvider() {
    override fun getKlibSourceFileName(declaration: KtDeclarationSymbol): String? {
        throw NotImplementedError("Method is not implemented for FE 1.0")
    }

internal class KtFe10DataFlowInfoProvider(override val analysisSession: KtAnalysisSession) : KtDataFlowInfoProvider() {
    override fun getExitPointSnapshot(statements: List<KtExpression>): KtDataFlowExitPointSnapshot {
        throw NotImplementedError("Method is not implemented for FE 1.0")
    }

    }

    override fun getImplementationStatus(
        memberSymbol: KtCallableSymbol,
        parentClassSymbol: KtClassOrObjectSymbol
    ): ImplementationStatus?  {
        throw NotImplementedError("Method is not implemented for FE 1.0")
    }

    override fun unwrapFakeOverrides(symbol: KtCallableSymbol): KtCallableSymbol {

        return subClassDescriptor.getSuperClassOrAny() == superClassDescriptor
    }

    override fun getIntersectionOverriddenSymbols(symbol: KtCallableSymbol): Collection<KtCallableSymbol> {
        throw NotImplementedError("Method is not implemented for FE 1.0")
    }

    await websocket.accept()
    await websocket.send_text("Hello, router with native prefix!")
    await websocket.close()


async def ws_dependency_err():
    raise NotImplementedError()


@router.websocket("/depends-err/")
async def router_ws_depends_err(websocket: WebSocket, data=Depends(ws_dependency_err)):
    pass  # pragma: no cover

class DictablePet(Pet):
    def __iter__(self):
        return ((k, v) for k, v in self.__dict__.items())


class Unserializable:
    def __iter__(self):
        raise NotImplementedError()

    @property
    def __dict__(self):
        raise NotImplementedError()


class RoleEnum(Enum):
    admin = "admin"
    normal = "normal"


class ModelWithConfig(BaseModel):
    role: Optional[RoleEnum] = None

- [`KT-57780`](https://youtrack.jetbrains.com/issue/KT-57780) K2: Calling a constructor through a deprecated typealias doesn't report a deprecation
- [`KT-59110`](https://youtrack.jetbrains.com/issue/KT-59110) K2. "NotImplementedError: An operation is not implemented." error on incorrect `@Target` annotation
- [`KT-59249`](https://youtrack.jetbrains.com/issue/KT-59249) K2: Empty varargs are not serialized to KLIB