@polkadot/types/interfaces/babe/rpc.js

Implementation of the Parity codec

export const rpc = {
    epochAuthorship: {
        description: 'Returns data about which slots (primary or secondary) can be claimed in the current epoch with the keys in the keystore',
        isUnsafe: true,
        params: [],
        type: 'HashMap<AuthorityId, EpochAuthorship>'
    }
};