export type WitnessData = {
    id: string;
    url: string;
};
export type BeaconState = {
    witnesses: WitnessData[];
    epoch: number;
    witnessesRequiredForClaim: number;
    nextEpochTimestampS: number;
};
export interface Beacon {
    /**
     * Get the witnesses for the epoch specified
     * or the current epoch if none is specified
     */
    getState(epoch?: number): Promise<BeaconState>;
    close?(): Promise<void>;
}