Are there any IPC APIs methods available for Visual Studio Code? I currently have a bash based build script and I'm wondering if there is a way to enhance it by programmatically checking if there currently any open dirty (unsaved) files in a locally running instance of Visual Studio Code so I could print a warning at build time if that's the case. I suppose a custom vscode extension could provide this but I'm wondering if there is any built-in mechanism for this? The closest to maybe being relevant information in the documentation I could find was this section on proprietary escape codes for the integrated terminal but there wasn't an actual listing of available escape codes and what they do and I suspect that's not really what I'm after anyway.