import { type LanguageModel } from 'ai';
import type { ContextStrategy } from '../types/context.js';
import type { Flow } from '../types/flow.js';
import type { RunState } from '../runtime/durable/types.js';
export interface ApplyContextStrategyOptions {
    strategy: ContextStrategy;
    run: RunState;
    flow: Flow;
    model: LanguageModel;
    summaryPrompt?: string;
    abortSignal?: AbortSignal;
}
export declare function applyContextStrategy(options: ApplyContextStrategyOptions): Promise<void>;
export declare function resolveContextStrategy(nodeContext: ContextStrategy | undefined, flow: Flow): ContextStrategy;