VS Code Unity Snippets
This extension for Visual Studio Code provides code snippets for working with Unity C# scripts. It contains the "Message" functions within MonoBehaviour, such as "Start", "OnCollisionEnter", and "OnSerializeNetworkView", complete with their signatures and brief documentation.
To use the snippets, simply begin typing one of the functions and the suggestions will appear within the IntelliSense popup. Press enter or tab to insert the snippet.