docs: def resolve(self, authorization: http.Header):
          """
          Determine the user associated with a request, using Token Authentication.
          """
          from django_apistar.authentication.models import Token
  
          if authorization is None:
              return None
  
          scheme, token = authorization.split()
          if scheme.lower() != 'bearer':
              return None
  
          try:
              user = Token.objects.get(key=token).user
          except Token.DoesNotExist:
              return None
  
          return user