new_contents: """ Adds the 'toggle-disassembly' command to switch you into a disassembly only mode """
  import lldb
  
  class DisassemblyMode:
      def __init__(self, debugger, unused):
          self.dbg = debugger
          self.interp = debugger.GetCommandInterpreter()
          self.store_state()
          self.mode_off = True
          
      def store_state(self):
          self.dis_count = self.get_string_value("stop-disassembly-count")
          self.dis_display = self.get_string_value("stop-disassembly-display")
          self.before_count = self.get_string_value("stop-line-count-before")
          self.after_count = self.get_string_value("stop-line-count-after")
          
      def get_string_value(self, setting):
          result = lldb.SBCommandReturnObject()
          self.interp.HandleCommand("settings show " + setting, result)
          value = result.GetOutput().split(" = ")[1].rstrip("\n")
          return value
      
      def set_value(self, setting, value):
          result = lldb.SBCommandReturnObject()
          self.interp.HandleCommand("settings set " + setting + " " + value, result)
          
      def __call__(self, debugger, command, exe_ctx, result):
          if self.mode_off:
              self.mode_off = False
              self.store_state()
              self.set_value("stop-disassembly-display","always")
              self.set_value("stop-disassembly-count", "8")
              self.set_value("stop-line-count-before", "0")
              self.set_value("stop-line-count-after", "0")
              result.AppendMessage("Disassembly mode on.")
          else:
              self.mode_off = True
              self.set_value("stop-disassembly-display",self.dis_display)
              self.set_value("stop-disassembly-count", self.dis_count)
              self.set_value("stop-line-count-before", self.before_count)
              self.set_value("stop-line-count-after", self.after_count)
              result.AppendMessage("Disassembly mode off.")
  
      def get_short_help(self):
          return "Toggles between a disassembly only mode and normal source mode\n"
  
  def __lldb_init_module(debugger, unused):
      debugger.HandleCommand("command script add -c disassembly_mode.DisassemblyMode toggle-disassembly")
  
subject: Add an example command to toggle between disassembly-only and source mode.