content: property btnTitle : "Mute audio"
  
  if application "zoom.us" is running then
    tell application "System Events"
      tell application process "zoom.us"
        if exists (menu item btnTitle of menu 1 of menu bar item "Meeting" of menu bar 1) then
          set returnValue to "on"
        else
          set returnValue to "off"
        end if
      end tell
    end tell
  else
    set returnValue to ""
  end if
  
  return returnValue