import { AISDKError } from './ai-sdk-error'; const name = 'AI_LoadAPIKeyError'; const marker = `vercel.ai.error.${name}`; const symbol = Symbol.for(marker); export class LoadAPIKeyError extends AISDKError { private readonly [symbol] = true; // used in isInstance constructor({ message }: { message: string }) { super({ name, message }); } static isInstance(error: unknown): error is LoadAPIKeyError { return AISDKError.hasMarker(error, marker); } }