src/index.js
export ExpressTransport from './transports/express_transport'
export ListRoute from './resources/list_route'
export Responder from './responders/responder'
export BackframeError from './error'
export Resources from './resources'
export Resource from './resource'
export Segment from './segment'
export Plugin from './plugin'
export Route from './route'
import BackframeCore from './backframe'
export const Backframe = BackframeCore
export default BackframeCore