Unable to call function from authorize.net response handler

public authorizeHandler(response: object) {
    console.log("Naveen",response);
    this.performServerSideTransationRequest(response)
    };

This is authorize .net Response handler

performServerSideTransationRequest(response)
  {
    #api call
  }

The error I got it

Uncaught TypeError: this.performServerSideTransationRequest is not a function
    at authorizeHandler