Upgrade priority: Low. Allows cleaner access to multiple
.at queries via new API.
ElectionPhase(Thanks to https://github.com/arjanz)
await api.at(<blockHash>)to retrieve API instances at a point
fallbackTypefor type classes (only struct, as defined)
instancesAPI config to drive derive collective locations
- Ensure correct registry is attached to historic metadata
- Align static metadata with latest Substrate