doneit-web/src/app/services/chat/nf.service.ts

import { Injectable } from '@angular/core';
import { MessageService } from './message.service';
import { RoomService } from './room.service';

@Injectable({
  providedIn: 'root'
})
export class NfService {

  beforeSendAttachment  = (message: MessageService, room?: RoomService): Promise<boolean> => new Promise ((resolve, reject)=> (resolve(true)))


  constructor() { }
}