{"ast_node_type":"other","tokens":[{"end":64,"kind":"keyword","start":0,"text":")"}]}
) -> anyhow::Result<lsp_types::DocumentDiagnosticReportResult> {
    params: lsp_types::DocumentDiagnosticParams,
    let file_id = match from_proto::file_id(&snap, &params.text_document.uri)? {