new_contents: """Constants used for OAuth services"""
  
  from django.utils.translation import ugettext_lazy as _
  
  
  OAUTH_SOURCE_GITHUB = 'github'
  OAUTH_SOURCE_BITBUCKET = 'bitbucket'
  
  OAUTH_SOURCE = (
      (OAUTH_SOURCE_GITHUB, _('GitHub')),
      (OAUTH_SOURCE_BITBUCKET, _('Bitbucket')),
  )
  
subject: Add missing constants