How to call a function inside Firebase email login Task in Unity?

On My unity app, inside login using email and password, I am using firebase login. My problem is when I try to call a function or execute a group code inside the task nothing happen. Not even an error. How to call a function inside this.

public void signin()
{
    auth.SignInWithEmailAndPasswordAsync(email.text, password.text).ContinueWith(task => {
         if (task.IsCanceled) 
         {
            Debug.LogError("SignInWithEmailAndPasswordAsync was canceled.");
            return;
        }
         if (task.IsFaulted)
         {
        Debug.LogError("SignInWithEmailAndPasswordAsync encountered an error: " + task.Exception);
        return;
        }

        Firebase.Auth.FirebaseUser newUser = task.Result;

        //========Checking Email Verified Or Not======

        if(auth.CurrentUser.IsEmailVerified== true)
        {
            Debug.LogFormat("User signed in successfully: {0} ({1})",newUser.DisplayName, newUser.UserId);

         //=================Here is the Problem this is not calling==========
           MyFunction();
         //==============================================
        }
        else
        {
        print("Email Not Verified");
        auth.SignOut(); 
        }
        //===========
       
        });     
}