old_contents: """
  Discord Auth OAuth2 backend, docs at:
      https://discordapp.com/developers/docs/topics/oauth2
  """
  
  from social_core.backends.oauth import BaseOAuth2
  
  class DiscordOAuth2(BaseOAuth2):
      name = 'discord'
      AUTHORIZATION_URL = 'https://discordapp.com/api/oauth2/authorize'
      ACCESS_TOKEN_URL = 'https://discordapp.com/api/oauth2/token'
      ACCESS_TOKEN_METHOD = 'POST'
      DEFAULT_SCOPE = ['identify']
      SCOPE_SEPARATOR = '+'
      REDIRECT_STATE = False
      EXTRA_DATA = [
          ('expires_in', 'expires'),
          ('refresh_token', 'refresh_token', True)
      ]
  
      def get_user_details(self, response):
          return {'username': response.get('username'),
                  'email': response.get('email') or ''}
  
      def user_data(self, access_token, *args, **kwargs):
          url = 'https://discordapp.com/api/users/@me'
          auth_header = {"Authorization": "Bearer %s" % access_token}
          return self.get_json(url, headers=auth_header)
new_contents: """
  Discord Auth OAuth2 backend, docs at:
      https://discordapp.com/developers/docs/topics/oauth2
  """
  
  from social_core.backends.oauth import BaseOAuth2
  
  class DiscordOAuth2(BaseOAuth2):
      name = 'discord'
      AUTHORIZATION_URL = 'https://discordapp.com/api/oauth2/authorize'
      ACCESS_TOKEN_URL = 'https://discordapp.com/api/oauth2/token'
      ACCESS_TOKEN_METHOD = 'POST'
      REVOKE_TOKEN_URL = 'https://discordapp.com/api/oauth2/token/revoke'
      REVOKE_TOKEN_METHOD = 'GET'
      DEFAULT_SCOPE = ['identify']
      SCOPE_SEPARATOR = '+'
      REDIRECT_STATE = False
      EXTRA_DATA = [
          ('expires_in', 'expires'),
          ('refresh_token', 'refresh_token')
      ]
  
      def get_user_details(self, response):
          return {'username': response.get('username'),
                  'email': response.get('email') or ''}
  
      def user_data(self, access_token, *args, **kwargs):
          url = 'https://discordapp.com/api/users/@me'
          auth_header = {"Authorization": "Bearer %s" % access_token}
          return self.get_json(url, headers=auth_header)
subject: Update discord backend