If you're looking for how to write Plakar integrations, please take a look at the SDK instead. It only exists to provide the Plakar-side bits to talk with plugins.
This integration exists to wrap a client talking our GRPC protocol as a Kloset exporter, importer or storage. It also includes the protobuf declarations needed to write integrations in other languages for which we don't provide yet an official SDK.
The gRPC integration does not require any specific configuration parameters; it merely proxies the one given.