yarn add rako rako-react or npm install rako rako-react.
https://codesandbox.io/s/011136qpkn
After you open the link of codeSandbox above, because codeSandbox doesn't support console.group, please press Ctrl + Shift + J(on Windows) or Ctrl + Option + J(on macOS) to open DevTools > Console.
createStoreContexts(...stores: Array<Store>): Array<StoreContext>
getStoreProvider(...storeContexts: Array<StoreContext>): StoreProvider