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Michal Kucharczyk authored
This PR implements [`GenesisBuilder` API](https://github.com/paritytech/polkadot-sdk/blob/a414ea75 /substrate/primitives/genesis-builder/src/lib.rs#L38) for all the runtimes in polkadot repo. Step towards: paritytech/polkadot-sdk#25 --------- Co-authored-by: ordian <[email protected]>