import type { ArchiveSource, ZipLike } from './archive.ts';
import type { DtypeProbe, TransformersLike } from './runtime.ts';
export type ModelSource = 
/** A portable model archive: a URL, a File from an <input>, a Blob, or bytes.
 *  Restored into the browser cache, so loading needs no further network. */
{
    archive: ArchiveSource;
    zip?: ZipLike;
}
/** A model folder served over HTTP: files live at `${base}${id}/config.json` etc. */
 | {
    base: string;
    id: string;
}
/** The Hugging Face Hub, by repo id. */
 | {
    hub: string;
};
/** Point the runtime at `source` and return the model id to load. */
export declare function resolveSource(tjs: TransformersLike, source: ModelSource): Promise<string>;
/** Where to probe for a model's dtype variants.
 *
 *  `base` and `archive` sources point `env.localModelPath` at their files, so
 *  the default probe already finds them. A `hub` source deliberately leaves
 *  that path alone — its files live at `<host><repo>/resolve/<revision>/`, which
 *  no local base ever points at — so it must say where to look. */
export declare function dtypeProbe(source: ModelSource, tjs: TransformersLike): DtypeProbe | undefined;
/** Human-readable description of a source, for logs and metrics. */
export declare function describeSource(source: ModelSource): string;
/** Base URL for a Hugging Face repo's files — handy with `exportModel`. */
export declare const hubRoot: (repo: string, revision?: string) => string;