Modified CustomAuthentication.authenticate comment to satisfy flake8

tdrs-backend/tdpservice/users/authentication.py

@@ -5,20 +5,18 @@
 from rest_framework.authentication import BaseAuthentication
 from rest_framework.request import Request
 import logging
-import os
 logger = logging.getLogger(__name__)
 
 class CustomAuthentication(BaseAuthentication):
     """Define authentication and get user functions for custom authentication."""
 
     @staticmethod
     def authenticate(request=None, username=None, login_gov_uuid=None, hhs_id=None):
-        """ HACK
-        This method currently needs to support two unrelated workflows.
-        References:
-          tdpservice/users/api/login.py:TokenAuthorizationOIDC.handleUser
-          https://www.django-rest-framework.org/api-guide/authentication
-        """
+        """Authenticate user with the request and username."""
+        # HACK: This method currently needs to support two unrelated workflows.
+        # References:
+        #   tdpservice/users/api/login.py:TokenAuthorizationOIDC.handleUser
+        #   https://www.django-rest-framework.org/api-guide/authentication
         if type(request) == Request:
             username = request.data.get('username')
             logging.debug(f"CustomAuthentication::authenticate: {request} {request.data} "