static JsonUnframedGrpcErrorHandler of(UnframedGrpcStatusMappingFunction statusMappingFunction) {
        return of(statusMappingFunction, ERROR_DETAILS_MARSHALLER);
    }
Error handler which maps a gRPC response to an {@link HttpResponse} in json format.
grpc/src/main/java/com/linecorp/armeria/server/grpc/JsonUnframedGrpcErrorHandler.java