@shopify/app-bridge-host/Middleware.d.ts

App Bridge Host contains middleware and components that are meant to be consumed by the app's host. The middleware and `Frame` component are responsible for facilitating messages posted between the client and host, and used to act on actions sent from the

import { Middleware, TrackingEventPayload } from './types';
export declare function buildMiddleware(key: string, dispatchClientEventHandler?: (trackingEventPayload: TrackingEventPayload) => void): Middleware;