import { Observation } from '../types';
export declare const MAX_ABS_TICK_MOVE: bigint;
export declare function transform(last: Observation, blockTimestamp: bigint, tick: bigint): Observation;
export declare function write(observations: Observation[], intermediate: Observation, index: bigint, blockTimestamp: bigint, tick: bigint, cardinality: bigint, cardinalityNext: bigint, minInterval: bigint): {
    intermediateUpdated: Observation;
    indexUpdated: bigint;
    cardinalityUpdated: bigint;
};
export declare function grow(observations: Observation[], current: bigint, next: bigint): bigint;
export declare function binarySearch(observations: Observation[], time: bigint, target: bigint, index: bigint, cardinality: bigint): {
    beforeOrAt: Observation;
    atOrAfter: Observation;
};
export declare function getSurroundingObservations(observations: Observation[], intermediate: Observation, time: bigint, target: bigint, tick: bigint, index: bigint, cardinality: bigint): {
    beforeOrAt: Observation;
    atOrAfter: Observation;
};
export declare function observeDouble(observations: Observation[], intermediate: Observation, time: bigint, secondsAgo0: bigint, secondsAgo1: bigint, tick: bigint, index: bigint, cardinality: bigint): {
    tickCumulative0: bigint;
    tickCumulative1: bigint;
};
export declare function observeTriple(observations: Observation[], intermediate: Observation, time: bigint, secondsAgo0: bigint, secondsAgo1: bigint, secondsAgo2: bigint, tick: bigint, index: bigint, cardinality: bigint): {
    tickCumulative0: bigint;
    tickCumulative1: bigint;
    tickCumulative2: bigint;
};
export declare function _observe(observations: Observation[], intermediate: Observation, time: bigint, secondsAgo: bigint[], tick: bigint, index: bigint, cardinality: bigint): bigint[];