RegisterHandlers adds each server route to the EchoRouter.

RegisterHandlersWithBaseURL handlers, and prepends BaseURL to the paths, so that the paths can be served under a prefix.

ServerInterfaceWrapper converts echo contexts to parameters.

EchoRouter is a simple interface which specifies additional echo.Route functions which are present on both echo.Echo and echo.Group, since we want to allow using either of them for path registration.

ServerInterface provides the endpoint to retrieve the openapi specification implemented by this service.