add docs

http-api/course.py

@@ -10,13 +10,13 @@ def create_course(
     /,
     persistence_layer: DynamoDBPersistenceLayer,
 ):
-    current_time = now()
+    now_ = now()
     transact = TransactItems(persistence_layer.table_name)
     transact.put(
         item={
             'sk': '0',
             'tenant__org_id': {org.id},
-            'create_date': current_time,
+            'create_date': now_,
             **course.model_dump(),
         }
     )
@@ -26,7 +26,7 @@ def create_course(
             'sk': 'tenant',
             'org_id': org.id,
             'name': org.name,
-            'create_date': current_time,
+            'create_date': now_,
         }
     )
     return persistence_layer.transact_write_items(transact)
@@ -38,7 +38,7 @@ def update_course(
     /,
     persistence_layer: DynamoDBPersistenceLayer,
 ):
-    current_time = now()
+    now_ = now()
     transact = TransactItems(persistence_layer.table_name)
     transact.update(
         key=KeyPair(id, '0'),
@@ -50,7 +50,7 @@ def update_course(
             ':name': course.name,
             ':cert': course.cert.model_dump() if course.cert else None,
             ':access_period': course.access_period,
-            ':update_date': current_time,
+            ':update_date': now_,
         },
         cond_expr='attribute_exists(sk)',
     )