import { StateStore } from '@liskhq/lisk-chain';
import { BFTParameters } from './schemas';
export declare const getBFTParameters: (paramsStore: StateStore, height: number) => Promise<BFTParameters>;
export declare const deleteBFTParameters: (paramsStore: StateStore, height: number) => Promise<void>;
export declare class BFTParametersCache {
    private readonly _paramsStore;
    private readonly _cache;
    constructor(paramsStore: StateStore);
    cache(from: number, to: number): Promise<void>;
    getParameters(height: number): Promise<BFTParameters>;
}