Fix Update.one to be consistent with Read & Delete.

Author: andrew-chang-dewitt

db_wrapper/model.py

@@ -127,7 +127,7 @@ def __init__(self, client: Client, table: sql.Composable) -> None:
         self._client = client
         self._table = table
 
-    async def one(self, id_value: str, changes: Dict[str, Any]) -> T:
+    async def one_by_id(self, id_value: str, changes: Dict[str, Any]) -> T:
         """Apply changes to row with given id.
 
         Arguments: