import { EventFired } from "@atomist/automation-client";
import { SlackMessage } from "@atomist/slack-messages";
import { Lifecycle, LifecycleHandler, Preferences } from "../../../lifecycle/Lifecycle";
import { Contributions } from "../../../lifecycleSupport";
import * as graphql from "../../../typings/types";
export declare class BranchLifecycle<R> extends LifecycleHandler<R> {
    private readonly extractNodes;
    private readonly _extractPreferences;
    private readonly contributors;
    constructor(extractNodes: (event: EventFired<R>) => [graphql.BranchToBranchLifecycle.Branch[], graphql.BranchFields.Repo, boolean], _extractPreferences: (event: EventFired<R>) => {
        [teamId: string]: Preferences[];
    }, contributors: Contributions);
    protected prepareMessage(): Promise<SlackMessage>;
    protected prepareLifecycle(event: EventFired<R>): Lifecycle[];
    protected extractPreferences(event: EventFired<R>): {
        [teamId: string]: Preferences[];
    };
}