/**
 * @octomil/browser — Model manager
 *
 * Downloads an ONNX model from a URL or the Octomil model registry,
 * caches it locally, and returns the raw `ArrayBuffer` for the
 * inference engine to consume.
 */
import type { ModelCache } from "./cache.js";
import type { OctomilOptions } from "./types.js";
export declare class ModelManager {
    private readonly modelId;
    private readonly serverUrl;
    private readonly apiKey;
    private readonly onProgress;
    private readonly cache;
    constructor(options: OctomilOptions, cache: ModelCache);
    /**
     * Resolve the model URL, check the cache, download if needed,
     * and return the ONNX model bytes.
     */
    load(): Promise<ArrayBuffer>;
    /** Check whether the model is already cached. */
    isCached(): Promise<boolean>;
    /** Remove the cached model. */
    clearCache(): Promise<void>;
    /** Get cache info for the model. */
    getCacheInfo(): Promise<import("./types.js").CacheInfo>;
    /**
     * If `modelId` looks like a URL (starts with http:// or https://) use it
     * directly.  Otherwise treat it as a registry model name and resolve via
     * the Octomil server.
     */
    resolveModelUrl(): Promise<string>;
    private fetchResolverUrl;
    private buildHeaders;
    private download;
    private delay;
    private validate;
}
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