Here is a list of all documented variables with links to the class documentation for each member:

• device_class : HAMQTT_Binary_Sensor_Config, HAMQTT_Button_Config
• enabled_by_default : HAMQTT_Binary_Sensor_Config, HAMQTT_Button_Config
• entity_picture : HAMQTT_Binary_Sensor_Config, HAMQTT_Button_Config
• expire_after : HAMQTT_Binary_Sensor_Config
• force_update : HAMQTT_Binary_Sensor_Config
• hw_version : HAMQTT_Device_Config
• icon : HAMQTT_Binary_Sensor_Config, HAMQTT_Button_Config
• manufacturer : HAMQTT_Device_Config
• model : HAMQTT_Device_Config
• mqtt_config_topic_prefix : HAMQTT_Device_Config
• mqtt_password : HAMQTT_Device_Config
• mqtt_uri : HAMQTT_Device_Config
• mqtt_username : HAMQTT_Device_Config
• name : HAMQTT_Binary_Sensor_Config, HAMQTT_Button_Config, HAMQTT_Device_Config
• off_delay : HAMQTT_Binary_Sensor_Config
• origin_url : HAMQTT_Device_Config
• serial_number : HAMQTT_Device_Config
• sw_version : HAMQTT_Device_Config
• unique_id : HAMQTT_Binary_Sensor_Config, HAMQTT_Button_Config, HAMQTT_Device_Config