Method in

packages/socket.io/lib/index.ts:904–906

* Targets a room when emitting. Similar to `to()`, but might feel clearer in some cases: * * @example * // disconnect all clients in the "room-101" room * io.in("room-101").disconnectSockets(); * * @param room - a room, or an array of rooms * @return a new {@link BroadcastOperat

(room: Room | Room[])

   * @return a new {@link BroadcastOperator} instance for chaining
   */
  public in(room: Room | Room[]) {
    return this.sockets.in(room);
  }

  /**
   * Excludes a room when emitting.