Create user without populating session token

Question

My question is very simple. Is it possible to create a user object without Parse-Server automatically creating a session token?

I have tried this code.

const myNewObject = new Parse.Object('_User');
myNewObject.set('username', 'myCustomKey1Value');
myNewObject.set('password', 'myCustomKey2Value');
let user = await myNewObject.save(null,{ useMasterKey: true });

Not working.

Any solution?