Help with scripts and Response variable

im using a sdk to turn on and off my heater scripts works well can run script as 2 buttons one on and one off.

how would i make a switch in home assistant toogle that lets me know states
also how can i save temp settings and display then

alias: heater off
sequence:
  - service: google_assistant_sdk.send_text_command
    data:
      command: turn off princess smart glass heater
mode: single


alias: smart heater temp
sequence:
  - service: google_assistant_sdk.send_text_command
    data:
      command: what is the tempture of princess smart glass heater
    response_variable: heater temp
mode: single

how can i use the response_variable to read the temp of heater ??

also i have a toogle in helper
what do i need to add to get it all working…