Function isWebmBuffer

quote/quote.ts:875–877

(buffer: Buffer | undefined)

  if (!client || !doc) return undefined;
  const location = new Api.InputDocumentFileLocation({
    id: doc.id,
    accessHash: doc.accessHash,
    fileReference: doc.fileReference,
    thumbSize: "",
  });
  return rawDownloadFile(client, location, doc.dcId);