old_contents: from haas import auth
  
  
  class NullAuthBackend(auth.AuthBackend):
  
      def authenticate(self):
          pass
  
      def have_admin(self):
          return True
  
      def have_project_access(self, project):
          return True
  
  
  def setup(*args, **kwargs):
      auth.set_auth_backend(NullAuthBackend())
  
new_contents: """'Null' auth backend
  
  This backend requires no authentication and permits everything. Useful for
  testing, do not use in production."""
  from haas import auth
  
  
  class NullAuthBackend(auth.AuthBackend):
  
      def authenticate(self):
          pass
  
      def have_admin(self):
          return True
  
      def have_project_access(self, project):
          return True
  
  
  def setup(*args, **kwargs):
      auth.set_auth_backend(NullAuthBackend())
  
subject: Add a module docstring for the null auth backend.