1. Implement a function 𝚌𝚑𝚎𝚌𝚔(𝚌𝚘𝚍𝚎: &𝚜𝚝𝚛) returning 𝚁𝚎𝚜𝚞𝚕𝚝<(), 𝙹𝚜𝙲𝚊𝚕𝙴𝚛𝚛𝚘𝚛>, where the error contains both a message and a range.
2. Use 𝚠𝚊𝚜𝚖-𝚙𝚊𝚌𝚔 𝚋𝚞𝚒𝚕𝚍 --𝚗𝚘𝚍𝚎𝚓𝚜 and publish to GitHub npm registry.
3. Clone lsp-sample and add the npm package as a dependency. https://github.com/Microsoft/vscode-extension-samples/tree/main/lsp-sample
4. Improve server.ts 𝚟𝚊𝚕𝚒𝚍𝚊𝚝𝚎𝚃𝚎𝚡𝚝𝙳𝚘𝚌𝚞𝚖𝚎𝚗𝚝() by calling 𝚌𝚑𝚎𝚌𝚔(𝚝𝚎𝚡𝚝) and catch any 𝙹𝚜𝙲𝚊𝚕𝙴𝚛𝚛𝚘𝚛 to generate diagnostics.
5. Enjoy your productivity tool.