tsl-devkit/lsp-server/test/request_json/definition.json

{
    "jsonrpc": "2.0",
    "id": 4,
    "method": "textDocument/definition",
    "params": {
        "textDocument": {
            "uri": "{{MAIN_UNIT_URI}}"
        },
        "position": {
            "line": 72,
            "character": 2
        }
    }
}