import type { QvacConfig } from "../../../schemas/index";
/**
 * Sets the SDK configuration. This can only be called ONCE during initialization.
 * After the first call, the config becomes immutable and any subsequent calls will throw.
 *
 * @param config - The configuration to set
 * @throws {ConfigAlreadySetError} If config has already been set
 * @throws {CacheDirNotAbsoluteError} If cacheDirectory is not an absolute path
 * @throws {CacheDirNotWritableError} If cacheDirectory is not writable
 */
export declare function setSDKConfig(config: QvacConfig): void;
export declare function getSDKConfig(): QvacConfig;
export declare function getConfiguredCacheDir(): string;
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