code: public static io.grpc.Status toGrpcStatus(io.opencensus.trace.Status opencensusStatus) {
      io.grpc.Status status =
          grpcStatusFromOpencensusCanonicalCode(opencensusStatus.getCanonicalCode());
      if (opencensusStatus.getDescription() != null) {
        status = status.withDescription(opencensusStatus.getDescription());
      }
      return status;
    }
docs: Returns a {@link io.grpc.Status} from a {@link io.opencensus.trace.Status}.
  
  @param opencensusStatus the given {@code io.opencensus.trace.Status}.
  @return a {@code io.grpc.Status} from a {@code io.opencensus.trace.Status}.
  @since 0.6