import { IRateLimitMemoryOptions } from '../types';
/**
 * Validates a `store` value from plugin options or a per-call config.
 * Fail-fast: configuration mistakes must never be masked by the errorPolicy.
 */
export declare function validateStoreType(store: unknown, source: string): void;
/**
 * Validates memory-store sizing options.
 */
export declare function validateMemoryOptions(memory: IRateLimitMemoryOptions | undefined, source: string): void;
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