no need to modify the code

just call the service to fire event!

event_type: xiaomi_aqara.click
event_data:
     entity_id: binary_sensor.switch_158d000xxxxxc2
     click_type: single

unicode SMS

notify.py (under /usr/src/homeassistant/homeassistant/components/sms/ directory) modified to support unicode SMS (ex. Chinese).