Make optional parameters (holdHours, coolHoldTemp, heatHoldTemp)
holdHours must be set if holdType is set to holdHours.
coolHoldTemp and heatHoldTemp are optional. Setting these
values in set_fan_hold can lead to unexpected behavior
This behavior has an issue in the HA repo (home-assistant/core#40087)
set_climate_hold
Fix comparison which was throwing a python warning.
set_fan_hold