How to write class that simulating Gaxios error?

I am using google sdk to communicate with the admin api with TypeScript. Google sdk uses Gaxios to send requests. I would like to write error handling to methods from google api. I would like to check if the error is of the Gaxios error type, if so, I would throw the appropriate http error.

export const handleError = (error) => { ... // Handling errors from google sdk if(error instanceof GaxiosError){ return Handle(400, error.message) } return handle(500, "Unknown error"); }; 

The problem is that I can't write a class that will pass through instanceof, I don't want to install the entire Gaxios library to handle only google sdk errors.

Here is the code of Gaxios

This is my code:

export interface GaxiosResponse<T = any> { config: any; data: T; status: number; statusText: string; headers: any; request: any; } export interface GaxiosOptions {} export class GaxiosError<T = any> extends Error { code?: string; response?: GaxiosResponse<T>; config: GaxiosOptions; constructor(message: string, options: GaxiosOptions, response: GaxiosResponse<T>) { super(message); this.response = response; this.config = options; this.code = response.status.toString(); } } 

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