NewCompatServiceJSONClient creates a JSON client that implements the CompatService interface.

NewCompatServiceProtobufClient creates a Protobuf client that implements the CompatService interface.

WriteError writes an HTTP response with a valid Twirp error format (code, msg, meta).

CompatServicePathPrefix is used for all URL paths on a twirp CompatService server.

HTTPClient is the interface used by generated clients to send HTTP requests.

TwirpServer is the interface generated server structs will support: they're HTTP handlers with additional methods for accessing metadata about the service.