import { TagFunctions } from './internal.js';
interface CachedFunctions {
    lastUsed: number;
    usedCount: number;
    tagFunctions: TagFunctions;
}
export declare function setTagFunctionCacheSize(newCacheSize: number): void;
export declare function getOrPutWrapCache<T extends object>(values: T, creator: () => TagFunctions): TagFunctions;
export declare function getOrPutClassesCache(classes: string[], creator: () => TagFunctions): TagFunctions;
export declare function maybeScheduleCacheReduction<T>(cache: Map<T, CachedFunctions>): void;
/**
 * Exported for unit tests only
 */
export declare function reduceCache<T>(cache: Map<T, CachedFunctions>): void;
/**
 * For unit tests only
 */
export declare function clearBothCaches(): void;
/**
 * For unit tests only
 */
export declare function wrapCacheSize(): number;
/**
 * For unit tests only
 */
export declare function classesCacheSize(): number;
export {};
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