Static SRSensorKeyboardMetrics 

pub unsafe static SRSensorKeyboardMetrics: &'static SRSensor

Sensor stream for Keyboard Usage

This stream stores information about keyboard usage from all apps where a keyboard is used including:

   - Metrics about typing speed and accuracy
   - Metrics about the length of typed or swiped words
   - Metrics about the typing errors made
   - The number of words and emojis that convey emotion

Fetches from this stream return objects of type SRKeyboardMetrics.

See also Apple’s documentation