function reg_recordingimport { reg_recording } from "https://deno.land/x/denops_std@v3.11.1/function/mod.ts"; reg_recording(denops: Denops): Promise<unknown>Returns the single letter name of the register being recorded. Returns an empty string when not recording. See |q|. Returns the single letter name of the register being recorded. Returns an empty string when not recording. See |q|. Parametersdenops: DenopsReturnsPromise<unknown>