Custom Emails and Auth Handling

I'm trying to create a door to door sales flow that creates a customer's account in the app, and then sends them a welcome email with a link to create their password. Does Wasp expose any internal methods to create password reset tokens that I can use in my own custom email sending logic? I don't want to rely on the Password Reset Request flow because it sends an email for Password Reset. Which is not the goal in this case.