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export class MissingApiKeyError extends Error {  constructor() {    super(      "api_key is required, get it from: https://serpapi.com/manage-api-key",    );    Object.setPrototypeOf(this, MissingApiKeyError.prototype);  }}
export class InvalidTimeoutError extends Error {  constructor() {    super("Enter a valid timeout in milliseconds");    Object.setPrototypeOf(this, InvalidTimeoutError.prototype);  }}