old_contents: from django.conf import settings
  
  from rest_auth.serializers import (
      TokenSerializer as DefaultTokenSerializer,
      UserDetailsSerializer as DefaultUserDetailsSerializer,
      LoginSerializer as DefaultLoginSerializer,
      PasswordResetSerializer as DefaultPasswordResetSerializer,
      PasswordResetConfirmSerializer as DefaultPasswordResetConfirmSerializer,
      PasswordChangeSerializer as DefaultPasswordChangeSerializer)
  from allauth.utils import import_callable
  
  
  serializers = getattr(settings, 'REST_AUTH_SERIALIZERS', {})
  
  TokenSerializer = import_callable(
      serializers.get('TOKEN_SERIALIZER', DefaultTokenSerializer))
  
  UserDetailsSerializer = import_callable(
      serializers.get('USER_DETAILS_SERIALIZER', DefaultUserDetailsSerializer)
  )
  
  LoginSerializer = import_callable(
      serializers.get('LOGIN_SERIALIZER', DefaultLoginSerializer)
  )
  
  PasswordResetSerializer = import_callable(
      serializers.get('PASSWORD_RESET_SERIALIZER',
          DefaultPasswordResetSerializer)
  )
  
  PasswordResetConfirmSerializer = import_callable(
      serializers.get('PASSWORD_RESET_CONFIRM_SERIALIZER',
          DefaultPasswordResetConfirmSerializer)
  )
  
  PasswordChangeSerializer = import_callable(
      serializers.get('PASSWORD_RESET_SERIALIZER',
          DefaultPasswordChangeSerializer)
  )
  
  
  
new_contents: from django.conf import settings
  
  from rest_auth.serializers import (
      TokenSerializer as DefaultTokenSerializer,
      UserDetailsSerializer as DefaultUserDetailsSerializer,
      LoginSerializer as DefaultLoginSerializer,
      PasswordResetSerializer as DefaultPasswordResetSerializer,
      PasswordResetConfirmSerializer as DefaultPasswordResetConfirmSerializer,
      PasswordChangeSerializer as DefaultPasswordChangeSerializer)
  from allauth.utils import import_callable
  
  
  serializers = getattr(settings, 'REST_AUTH_SERIALIZERS', {})
  
  TokenSerializer = import_callable(
      serializers.get('TOKEN_SERIALIZER', DefaultTokenSerializer))
  
  UserDetailsSerializer = import_callable(
      serializers.get('USER_DETAILS_SERIALIZER', DefaultUserDetailsSerializer)
  )
  
  LoginSerializer = import_callable(
      serializers.get('LOGIN_SERIALIZER', DefaultLoginSerializer)
  )
  
  PasswordResetSerializer = import_callable(
      serializers.get('PASSWORD_RESET_SERIALIZER',
          DefaultPasswordResetSerializer)
  )
  
  PasswordResetConfirmSerializer = import_callable(
      serializers.get('PASSWORD_RESET_CONFIRM_SERIALIZER',
          DefaultPasswordResetConfirmSerializer)
  )
  
  PasswordChangeSerializer = import_callable(
      serializers.get('PASSWORD_CHANGE_SERIALIZER',
          DefaultPasswordChangeSerializer)
  )
  
  
  
subject: fix setting name