new_contents: from bson import BSON, decode_all
  from pymongo import MongoClient
  import os
  
  
  client = MongoClient(os.environ.get('MONGODB_URI'))
  db = client.get_default_database()
  users, events, companies = db.users, db.events, db.companies
  
  with open('backup/heroku_lx65hjrq/users.bson', 'rb') as f:
      users.insert(decode_all(f.read()))
  
  with open('backup/heroku_lx65hjrq/companies.bson', 'rb') as f:
      companies.insert(decode_all(f.read()))
  
  with open('backup/heroku_lx65hjrq/events.bson', 'rb') as f:
      events.insert(decode_all(f.read()))
  
subject: Add import_db