fix(AIP-136): describe collection-based custom method on root resource (#1578)

bart-at-google · web-flow · commit 3ffcc350bcc5 · 2025-11-14T22:13:26.000Z
diff --git a/aip/general/0136.md b/aip/general/0136.md
@@ -100,8 +100,8 @@ rpc SortBooks(SortBooksRequest) returns (SortBooksResponse) {
 }
 ```
 
-- The collection's parent resource **must** be called `parent`, and
-  be the only variable in the URI path.
+- If the collection's resource has a parent, that resource **must** be called
+  `parent` and be the only variable in the URI path.
 - The collection key (`books` in the above example) **must** be literal.
 
 ### Stateless methods

Original file line number	Diff line number	Diff line change
`@@ -100,8 +100,8 @@ rpc SortBooks(SortBooksRequest) returns (SortBooksResponse) {`
`100`	`100`	`}`
`101`	`101`	```
`102`	`102`
`103`		-- The collection's parent resource must be called `parent`, and
`104`		`- be the only variable in the URI path.`
	`103`	`+- If the collection's resource has a parent, that resource must be called`
	`104`	+ `parent` and be the only variable in the URI path.
`105`	`105`	- The collection key (`books` in the above example) must be literal.
`106`	`106`
`107`	`107`	`### Stateless methods`