Google Assistant May Soon Support Typed Questions

Outside of Google's Allo messaging app, you must speak aloud if you want to use Google Assistant. That's perhaps one of the system's greatest limitations right now and code in the beta for the Google search app suggests it could be addressed.

The APK features code pertaining to text input for Assistant, namely in the form of a text box and keyboard icon.

The code also mentions "search gestures" that'll allow you to enter a search by first swiping down from the home screen rather than touching the search bar.