text: from flask_bcrypt import Bcrypt
  from flask_sqlalchemy import SQLAlchemy
  
  db = SQLAlchemy()
  bcrypt = Bcrypt()
  
  from visualize.models.ag_request import AccessGroupRequest
  from visualize.models.ag import AccessGroup, gives_access_to
  from visualize.models.admin import Admin
  from visualize.models.approver import Approver
  from visualize.models.approves_ag_request import ApprovesAgRequest
  from visualize.models.approves_room_request import ApprovesRoomRequest
  from visualize.models.belongs_to import BelongsTo
  from visualize.models.card_reader import CardReader
  from visualize.models.has_access_to import HasAccessTo
  from visualize.models.reader import Reader
  from visualize.models.responsible_for_ag import ResponsibleForAg
  from visualize.models.responsible_for_room import ResponsibleForRoom
  from visualize.models.room_request import RoomRequest
  from visualize.models.room import Room
  from visualize.models.request_status import RequestStatus
  