import type { Content } from "../content/content.js";
import type { Engine } from "../engine/index.js";
import { type PipelineSettings } from "../index.js";
import type { Plugin } from "../plugin/index.js";
export interface PromptThreadsSummary {
    totalPrompts: number;
    finished: number;
    errors: number;
    done: boolean;
}
export interface PromptThreadSummary extends PromptThreadsSummary {
    isolated: boolean;
}
export declare function scheduler<T>(taskQueue: Array<() => Promise<T>>, limit?: number): Promise<PromiseSettledResult<T>[]>;
export declare class PromptThread {
    private readonly content;
    private readonly context;
    private settings;
    private engine;
    private plugin;
    finished: number;
    isolated: boolean;
    private done;
    runner?: Promise<PromiseSettledResult<Content>[]>;
    errors: Array<[number, Error]>;
    get isDone(): boolean;
    get isSuccess(): boolean;
    get isError(): boolean;
    private view;
    static run(content: Content[], context: Record<string, Content>, settings: PipelineSettings, engine: Engine, rag: Plugin): PromptThread;
    private constructor();
    start(): void;
    private runOne;
    private template;
    private runIsolated;
    private runSequence;
    allSettled(): Promise<PromiseSettledResult<Content>[]>;
    summary(): PromptThreadSummary;
}
export declare function generateOne(c: Content, context: Record<string, Content>, settings: PipelineSettings, engine: Engine): Promise<void>;
export declare function drain(content: Content): Promise<void>;
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