The method-level middleware configuration: for each method it specifies how to construct the middleware chain. If the string is found in the chain, the middleware will be looked up in the `middleware` object. The configured middleware object return by the Idio's `start` method. The filename. The filter for filenames. Defaults to importing JS and JSX. The map of aliases. Aliases can also be specified in routes by exporting the `aliases` property. The route. Receives the route and returns an ordered array of middleware.