message: Edit a comment.
diff: @@ -50,6 +50,7 @@ export class Reference implements IProvider {
  * and the result is used to update the cache.
  * @param file The path of a LaTeX file.
  * @param nodes AST of a LaTeX file.
  + * @param lines The lines of the content. They are used to generate the documentation of completion items.
  * @param content The content of a LaTeX file.
  */
  update(file: string, nodes?: latexParser.Node[], lines?: string[], content?: string) {
  