old_contents: from june.app import app, prepare_app
  
  app.config.from_pyfile('_config/development.py')
  prepare_app()
  
  from june.account import models
  models.db.create_all()
  
new_contents: from june.app import app, prepare_app
  
  app.config.from_pyfile('_config/development.py')
  prepare_app()
  
  from june import account, node
  account.models.db.create_all()
  node.models.db.create_all()
  
subject: create node app tables