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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def create_app(application, request_class=Request):
 """ Create a WSGI application out of the given Minion app. Arguments: application (Application):
 a minion app request_class (callable):
 a class to use for constructing incoming requests out of the WSGI environment. It will be passed a single arg, the environ. By default, this is :class:`minion.request.WSGIRequest` if unprovided. """


    def wsgi(environ, start_response):
        response = application.serve(
            request=request_class(environ),
            path=environ.get("PATH_INFO", ""),
        )
        start_response(
            response.status, [
                (name, b",".join(values))
                for name, values in response.headers.canonicalized()
            ],
        )
        return [response.content]
    return wsgi