User Identification in messaging

We're looking to auto-populate a customer's name & email based on their login information within Zendesk Messaging. Zendesk legacy chat has a function where we'd just call from the code, passing it all the login data so that the user doesn't have to manually input this every time they start a chat. We're wondering if there is something equivalent to zE('webWidget', 'identify') and zE('webWidget', 'logout') supported in the new Zendesk Messaging?