set_mode: description: 'Set the home/away mode for a Nest structure. Set to away mode will also set Estimated Arrival Time if provided. Set ETA will cause the thermostat to begin warming or cooling the home before the user arrives. After ETA set other Automation can read ETA sensor as a signal to prepare the home for the user''s arrival. ' fields: eta: {description: Optional Estimated Arrival Time from now., example: '0:10'} eta_window: {description: Optional ETA window. Default is 1 minute., example: '0:5'} home_mode: {description: home or away, example: home} structure: {description: Optional structure name. Default set all structures managed by Home Assistant., example: My Home} trip_id: {description: Optional identity of a trip. Using the same trip_ID will update the estimation., example: trip_back_home}