import type { ModelProgressUpdate } from "../../../../schemas/index";
import type { QVACBlobBinding } from "@qvac/registry-client";
import type { AbortSignal } from "bare-abort-controller";
import type { DownloadHooks } from "./types";
export { DEFAULT_REGISTRY_STREAM_TIMEOUT_MS, buildRegistryClientOptions, } from "./registry-client-options";
export type { RegistryClientDownloadOptions } from "./registry-client-options";
export declare function buildBlobBinding(meta: {
    blobCoreKey: string;
    blobBlockOffset: number;
    blobBlockLength: number;
    blobByteOffset: number;
    expectedSize: number;
}): QVACBlobBinding;
/**
 * Validate a cached file against expected size and checksum.
 */
export declare function validateCachedFile(modelPath: string, modelFileName: string, expectedSize: number, expectedChecksum?: string, hooks?: DownloadHooks): Promise<string | null>;
/**
 * Download a single file from the registry to filesystem.
 * When blobBinding is provided, uses direct blob download (skips metadata sync).
 * Otherwise falls back to metadata-based downloadModel.
 */
export declare function downloadSingleFileFromRegistry(registryPath: string, registrySource: string, modelPath: string, modelFileName: string, downloadKey: string, expectedSize: number, expectedChecksum: string, progressCallback?: (progress: ModelProgressUpdate) => void, signal?: AbortSignal, blobBinding?: QVACBlobBinding, hooks?: DownloadHooks): Promise<void>;
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