Setting tawk name/email to WordPress User

I see how to set the username purely in code for the prechat form, using the visitor{} call as described here: https://www.tawk.to/javascript-api/#visitor

What I’d like is to integrate this functionality to the tawk.to plugin, which would be the logical place to put it. Any suggestions? It seems a straightforward enough function, just test if a user is logged into the site, and if so, use the name and email from their WordPress user info.

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