import * as t from "io-ts";
import * as Knex from "knex";
import Augur from "augur.js";
import { BigNumber } from "bignumber.js";
export interface PlatformActivityResult {
    activeUsers: BigNumber;
    numberOfTrades: BigNumber;
    openInterest: BigNumber;
    marketsCreated: BigNumber;
    volume: BigNumber;
    amountStaked: BigNumber;
    disputedMarkets: BigNumber;
}
export declare const PlatformActivityStatsParams: t.InterfaceType<{
    universe: t.StringType;
    endTime: t.UnionType<(t.NullType | t.NumberType)[], number | null, number | null, t.mixed>;
    startTime: t.UnionType<(t.NullType | t.NumberType)[], number | null, number | null, t.mixed>;
}, t.TypeOfProps<{
    universe: t.StringType;
    endTime: t.UnionType<(t.NullType | t.NumberType)[], number | null, number | null, t.mixed>;
    startTime: t.UnionType<(t.NullType | t.NumberType)[], number | null, number | null, t.mixed>;
}>, t.OutputOfProps<{
    universe: t.StringType;
    endTime: t.UnionType<(t.NullType | t.NumberType)[], number | null, number | null, t.mixed>;
    startTime: t.UnionType<(t.NullType | t.NumberType)[], number | null, number | null, t.mixed>;
}>, t.mixed>;
export declare type PlatformActivityStatsParamsType = t.TypeOf<typeof PlatformActivityStatsParams>;
export declare function getPlatformActivityStats(db: Knex, augur: Augur, params: PlatformActivityStatsParamsType): Promise<PlatformActivityResult>;