/**
 * Memory tracker state. The container wrappers consult a module-level
 * "current context" getter so each mutation can attribute itself to the
 * active flow/request. The host wires this getter to its own
 * AsyncLocalStorage (e.g. nest-instrumentation's
 * `currentLensmcpContext`).
 */
import type { MemoryContext, ResolvedMemoryOptions, MemoryEventSink } from './types.js';
type ContextGetter = () => MemoryContext | undefined;
export declare function configureMemoryTracker(opts: {
    sessionId: string;
    sink: MemoryEventSink;
    leakItemThreshold?: number;
    staleGenerationBytesThreshold?: number;
    settleMs?: number;
    contextGetter?: ContextGetter;
}): ResolvedMemoryOptions;
export declare function activeMemoryOptions(): ResolvedMemoryOptions | undefined;
export declare function currentMemoryContext(): MemoryContext | undefined;
/** Test hook. */
export declare function resetMemoryTracker(): void;
export {};