import { UpdateChannelParams, CreateChannelParams, SyncChannelParams, CloseChannelParams, GetStateParams, ChannelId, ChannelResult } from '@statechannels/client-api-schema';
import { Config } from 'knex';
import { ChainRequest } from '../chain-service';
import { WalletObjective } from '../models/objective';
import { Outgoing } from '../protocols/actions';
import { Bytes32 } from '../type-aliases';
import { MetricsConfiguration } from '.';
export declare type SingleChannelOutput = {
    outbox: Outgoing[];
    channelResult: ChannelResult;
    newObjective: WalletObjective | undefined;
    chainRequests: ChainRequest[];
};
export declare type MultipleChannelOutput = {
    outbox: Outgoing[];
    channelResults: ChannelResult[];
    newObjectives: WalletObjective[];
    completedObjectives: WalletObjective[];
    chainRequests: ChainRequest[];
};
export declare type Output = SingleChannelOutput | MultipleChannelOutput;
export interface EngineInterface {
    createChannels(args: CreateChannelParams, numberOfChannels: number): Promise<MultipleChannelOutput>;
    joinChannels(channelIds: ChannelId[]): Promise<MultipleChannelOutput>;
    updateChannel(args: UpdateChannelParams): Promise<SingleChannelOutput>;
    closeChannel(args: CloseChannelParams): Promise<SingleChannelOutput>;
    getChannels(): Promise<MultipleChannelOutput>;
    getState(args: GetStateParams): Promise<SingleChannelOutput>;
    syncChannels(chanelIds: Bytes32[]): Promise<MultipleChannelOutput>;
    syncChannel(args: SyncChannelParams): Promise<SingleChannelOutput>;
    challenge(channelId: string): Promise<SingleChannelOutput>;
    pushMessage(m: unknown): Promise<MultipleChannelOutput>;
    pushUpdate(m: unknown): Promise<SingleChannelOutput>;
    crank(channelIds: string[]): Promise<MultipleChannelOutput>;
}
export declare function isMultipleChannelOutput(output: SingleChannelOutput | MultipleChannelOutput): output is MultipleChannelOutput;
export declare function hasNewObjective(response: SingleChannelOutput): response is SingleChannelOutput & {
    newObjective: WalletObjective;
};
export declare type EngineConfig = {
    skipEvmValidation: boolean;
    metrics: MetricsConfiguration;
    dbConfig: Config;
    chainNetworkID: string;
    workerThreadAmount: number;
};
//# sourceMappingURL=types.d.ts.map