import type { SessionState, WithParts } from "../state";
export declare const PRUNED_OUTPUT = "[Output pruned]";
export declare const PRUNED_INPUT = "[pruned]";
export declare const PRUNED_QUESTIONS = "[pruned - see output]";
/**
 * Get prunable content string if the value should be pruned.
 * Returns null if the value is already pruned or too short.
 */
export declare function getPrunableContent(value: any, placeholder: string): string | null;
export declare const prune: (state: SessionState, messages: WithParts[]) => void;
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