Upstream results
This method returns the upstream cost results for a given path in an upstream contribution tree. If the path is empty, the root of that tree is returned.
| REST | POST result/{result-id}/upstream-costs-of |
| IPC | result/upstream-costs-of |
| Python IPC | Result.get_upstream_costs_of |
| Return type | List[UpstreamNode] |
| Parameter | the upstream path encoded as string |