/**
 * detectZarrStore
 *
 * Framework-agnostic probe that checks whether a URL already points at a Zarr
 * store. When it does, a host can skip the server-side conversion step and
 * stream/render the store directly.
 */
/** Result of probing a URL for a Zarr store. */
export interface ZarrStoreInfo {
    /** Whether the URL points at a readable Zarr store. */
    isZarr: boolean;
    /** Detected Zarr format version, or `null` when it is not a Zarr store. */
    version: 2 | 3 | null;
    /**
     * Whether consolidated metadata is available - i.e. the store can be
     * rendered client-side. v2 `.zmetadata` is consolidated by definition;
     * v3 requires a `consolidated_metadata` key in `zarr.json`.
     *
     * Non-consolidated stores are still Zarr and can skip conversion, but have
     * no client-side metadata view until server-side rendering is available.
     */
    consolidated: boolean;
}
/** Options for {@link detectZarrStore}. */
export interface DetectZarrStoreOptions {
    /**
     * Override auth header injection.
     * Default: reads a Bearer token from the `freva_auth_token` cookie.
     */
    getAuthHeaders?: () => Record<string, string>;
    /** Abort each probe request after this many ms. Default: 5000. */
    timeoutMs?: number;
}
/**
 * Checks whether a URL already points to a Zarr store by probing
 * `.zmetadata` (v2 consolidated) and then `zarr.json` (v2/v3).
 *
 * Consolidated metadata is tried first (the browser equivalent of
 * `zarr.open_consolidated`), then bare group detection (`zarr.open_group`).
 */
export declare function detectZarrStore(url: string, options?: DetectZarrStoreOptions): Promise<ZarrStoreInfo>;
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