import type { DatabaseInterface } from '@happyvertical/sql';
import type { ExplainedObjectFieldPolicy } from './types.js';
export declare function getFieldPolicyCacheTtlMs(): number;
export declare function getCachedFieldPolicy(objectRef: string, tenantId: string | null | undefined, userId: string | null | undefined, db: DatabaseInterface | unknown, hierarchyLoader?: unknown): ExplainedObjectFieldPolicy | null;
export declare function setCachedFieldPolicy(objectRef: string, tenantId: string | null | undefined, userId: string | null | undefined, db: DatabaseInterface | unknown, value: ExplainedObjectFieldPolicy, hierarchyLoader?: unknown): void;
/**
 * Drop every cached resolution for `(db, objectRef)`.
 *
 * Deliberately coarser than the prompts precedent (which deletes a single
 * `(key, tenantId)` entry when the tenant is known): tenant HIERARCHY makes a
 * parent-tenant row change affect every descendant tenant's resolution, and a
 * lock or app-row change affects user-tier entries too, so precise
 * invalidation would have to know the whole tenant tree. Per-objectRef prefix
 * invalidation is always correct and the 30s TTL keeps the cost bounded.
 */
export declare function invalidateFieldPolicyCache(objectRef: string, db: DatabaseInterface | unknown): void;
export declare function clearFieldPolicyCache(): void;
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