import { ARTHStoreState, ARTHStore, Fees } from "@mahadao/arth-base";
import { ReadableEthersARTH } from "./ReadableEthersARTH";
import { EthersARTHConnection } from "./EthersARTHConnection";
/**
 * Extra state added to {@link @mahadao/arth-base#ARTHStoreState} by
 * {@link BlockPolledARTHStore}.
 *
 * @public
 */
export interface BlockPolledARTHStoreExtraState {
    /**
     * Number of block that the store state was fetched from.
     *
     * @remarks
     * May be undefined when the store state is fetched for the first time.
     */
    blockTag?: number;
    /**
     * Timestamp of latest block (number of seconds since epoch).
     */
    blockTimestamp: number;
    /** @internal */
    _feesFactory: (blockTimestamp: number, recoveryMode: boolean) => Fees;
}
/**
 * The type of {@link BlockPolledARTHStore}'s
 * {@link @mahadao/arth-base#ARTHStore.state | state}.
 *
 * @public
 */
export declare type BlockPolledARTHStoreState = ARTHStoreState<BlockPolledARTHStoreExtraState>;
/**
 * Ethers-based {@link @mahadao/arth-base#ARTHStore} that updates state whenever there's a new
 * block.
 *
 * @public
 */
export declare class BlockPolledARTHStore extends ARTHStore<BlockPolledARTHStoreExtraState> {
    readonly connection: EthersARTHConnection;
    private readonly _readable;
    private readonly _provider;
    constructor(readable: ReadableEthersARTH);
    private _getRiskiestTroveBeforeRedistribution;
    private _get;
    /** @internal @override */
    protected _doStart(): () => void;
    /** @internal @override */
    protected _reduceExtra(oldState: BlockPolledARTHStoreExtraState, stateUpdate: Partial<BlockPolledARTHStoreExtraState>): BlockPolledARTHStoreExtraState;
}
//# sourceMappingURL=BlockPolledARTHStore.d.ts.map