/**
 * Dev-only dispatcher hot swap (BRIDGE_HOT_SWAP_ENABLED): pushes a freshly
 * built extension dispatcher bundle (easyeda-bridge-extension/dist/dispatcher.js)
 * over the bridge as system.hotSwap.begin/chunk/commit frames. The extension
 * loader verifies the sha256, evals the bundle, and swaps its active
 * dispatcher — no .eext re-import, no reconnect.
 */
export interface DispatcherArtifact {
    source: string;
    buildId: string;
    sha256: string;
    byteLength: number;
}
export interface LoaderStatus {
    loaderVersion?: string;
    activeDispatcher?: 'baked' | 'pushed';
    buildId?: string;
    bakedBuildId?: string;
    methodCount?: number;
    methodListHash?: string;
    hotSwapCompiled?: boolean;
    hotSwapEnabled?: boolean;
}
export interface HotSwapResult {
    swapped: boolean;
    buildId?: string;
    methodCount?: number;
    methodListHash?: string;
}
type BridgeCall = <TParams, TResult>(method: string, params?: TParams, opts?: {
    timeoutMs?: number;
}) => Promise<TResult>;
/**
 * Read the dispatcher bundle plus its build metadata. The buildId comes from
 * the `dispatcher.meta.json` sidecar written by the extension build script;
 * the hash/size are recomputed from the actual bundle so a stale sidecar can
 * never push mismatched bytes.
 */
export declare function readDispatcherArtifact(bundlePath: string): DispatcherArtifact;
export declare function fetchLoaderStatus(call: BridgeCall): Promise<LoaderStatus>;
/**
 * Drive a full begin → chunk* → commit push. Throws on any step failure; the
 * extension keeps its previous dispatcher in that case.
 */
export declare function pushDispatcher(call: BridgeCall, artifact: DispatcherArtifact, chunkBytes: number): Promise<HotSwapResult>;
export declare function revertDispatcher(call: BridgeCall): Promise<{
    reverted: boolean;
    buildId?: string;
}>;
export {};