import type { GranularityId, BalanceHistoryCache, AccountLike, Account } from "@ledgerhq/types-live";
export declare const createEmptyHistoryCache: () => {
    HOUR: {
        latestDate: null;
        balances: never[];
    };
    DAY: {
        latestDate: null;
        balances: never[];
    };
    WEEK: {
        latestDate: null;
        balances: never[];
    };
};
export declare const emptyHistoryCache: {
    HOUR: {
        latestDate: null;
        balances: never[];
    };
    DAY: {
        latestDate: null;
        balances: never[];
    };
    WEEK: {
        latestDate: null;
        balances: never[];
    };
};
export declare function startOfHour(t: Date): Date;
export declare function startOfDay(t: Date): Date;
export declare function startOfWeek(t: Date): Date;
export declare function generateHistoryFromOperations(account: AccountLike): BalanceHistoryCache;
/**
 * get the current balance history of the account. if possible from the cache.
 */
export declare function getAccountHistoryBalances(account: AccountLike, g: GranularityId): number[];
/**
 * utility used at the end of an account synchronisation to recalculate the balance history if necessary
 */
export declare function recalculateAccountBalanceHistories<A extends Account = Account>(res: A, prev: A): A;
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