old_contents: from django.conf.urls import url
  from rest_framework.urlpatterns import format_suffix_patterns
  from drfpasswordless.views import (ObtainEmailCallbackToken,
                                     ObtainMobileCallbackToken,
                                     ObtainAuthTokenFromCallbackToken,
                                     VerifyAliasFromCallbackToken,
                                     ObtainEmailVerificationCallbackToken,
                                     ObtainMobileVerificationCallbackToken, )
  
  urlpatterns = [url(r'^auth/token/$', ObtainAuthTokenFromCallbackToken.as_view(), name='auth_callback'),
                 url(r'^auth/email/$', ObtainEmailCallbackToken.as_view(), name='auth_email'),
                 url(r'^auth/mobile/$', ObtainMobileCallbackToken.as_view(), name='auth_mobile'),
                 url(r'^auth/verify/$', VerifyAliasFromCallbackToken.as_view(), name='verify_callback'),
                 url(r'^auth/verify/email/$', ObtainEmailVerificationCallbackToken.as_view(), name='verify_email'),
                 url(r'^auth/verify/mobile/$', ObtainMobileVerificationCallbackToken.as_view(), name='verify_mobile')]
  
  format_suffix_patterns(urlpatterns)
  
new_contents: from django.urls import path
  from rest_framework.urlpatterns import format_suffix_patterns
  from drfpasswordless.settings import api_settings
  from drfpasswordless.views import (ObtainEmailCallbackToken,
                                     ObtainMobileCallbackToken,
                                     ObtainAuthTokenFromCallbackToken,
                                     VerifyAliasFromCallbackToken,
                                     ObtainEmailVerificationCallbackToken,
                                     ObtainMobileVerificationCallbackToken, )
  
  urlpatterns = [
      path(api_settings.PASSWORDLESS_AUTH_PREFIX + 'email/', ObtainEmailCallbackToken.as_view(), name='auth_email'),
      path(api_settings.PASSWORDLESS_AUTH_PREFIX + 'mobile/', ObtainMobileCallbackToken.as_view(), name='auth_mobile'),
      path(api_settings.PASSWORDLESS_AUTH_PREFIX + 'token/', ObtainAuthTokenFromCallbackToken.as_view(),
           name='auth_token'),
      path(api_settings.PASSWORDLESS_VERIFY_PREFIX + 'email/', ObtainEmailVerificationCallbackToken.as_view(),
           name='verify_email'),
      path(api_settings.PASSWORDLESS_VERIFY_PREFIX + 'mobile/', ObtainMobileVerificationCallbackToken.as_view(),
           name='verify_mobile'),
      path(api_settings.PASSWORDLESS_VERIFY_PREFIX, VerifyAliasFromCallbackToken.as_view(), name='verify_token'),
  ]
  
  format_suffix_patterns(urlpatterns)
  
subject: Fix tests for urls