As we all know, when connecting a signal in Godot Editor, it will automatically generate callback code at the end of the script. Sometimes it's not flexible (especially with C#).
This plugin can prevent code auto-generation and add a handler to control which language can auto-generate code.
Copy toggle_code_generation
to your addons folder. Activate it at Project -> Project Settings -> Plugins
.
Now you can find options at Project -> Tools -> Toggle Code Generation
.