probeInputDevices
Probes connected input devices and installed input methods.
Reports input-device count, a hash of device descriptors, a source-type histogram, the IME list count and a hash of enabled IME package names (via InputDevice and InputMethodManager).
Privacy: descriptors are hashed; the enabled-IME set can reveal installed keyboards. No runtime permission is required.
Return
Map of probe keys to input-device values.
Parameters
context
Context used to obtain the input-method service.