
This patch adds microversion 1.31 supporting the `in_tree`/`in_tree<N>` query parameters to the `GET /allocation_candidates` API. It accepts a UUID for a resource provider. If this parameter is provided, the only resource providers returned will be those with the same tree with the given resource provider. Change-Id: I24d333d1437168f27aaaac6d894a18271cb6ab91 Blueprint: alloc-candidates-in-tree