node-redis/packages/client/lib/commands/ECHO.ts

import { RedisArgument, BlobStringReply, Command } from '../RESP/types';

export default {
  FIRST_KEY_INDEX: undefined,
  IS_READ_ONLY: true,
  transformArguments(message: RedisArgument) {
    return ['ECHO', message];
  },
  transformReply: undefined as unknown as () => BlobStringReply
} as const satisfies Command;