docs: def create_user(backend, details, response, uid, username, user=None, *args, **kwargs):
      """
      Creates user. Depends on get_username pipeline.
      """
      if user:
          return {'user': user}
      if not username:
          return None
      email = details.get('email')
      original_email = None
      # email is required
      if not email:
          message = _("""your social account needs to have a verified email address in order to proceed.""")
          raise AuthFailed(backend, message)
      # Avoid hitting field max length
      if email and len(email) > 75:
          original_email = email
          email = ''
      return {
          'user': UserSocialAuth.create_user(username=username,
                                             email=email,
                                             sync_emailaddress=False),
          'original_email': original_email,
          'is_new': True
      }