@Nullable
    private static TBase<?, ?> getResult(ProcessFunction<?, ?> func) {
        return getResult0(Type.SYNC, func.getClass(), func.getMethodName());
    }
Converts the specified {@code result} into a Java object.
thrift/thrift0.13/src/main/java/com/linecorp/armeria/internal/common/thrift/ThriftFunction.java