GetCode retrieves the GRPC code for a code or its first ancestor with a GRPC code.

SetCode adds a GRPC code to the meta data of a code.

Status creates a GRPC Status object from an ErrorCode.

WrapAsGRPC constructs a value that responds as both an ErrorCode and as a GRPC status.

ErrorCodeStatus is both an ErrorCode and a GRPC Status.

StatusGRPC is the interface to a GRPC status code.