public void setSuccess(TBase<?, ?> result, Object value) {
        if (successField != null) {
            ThriftFieldAccess.set(result, successField, value);
        }
    }
Sets the success field of the specified {@code result} to the specified {@code value}.
thrift/thrift0.13/src/main/java/com/linecorp/armeria/internal/common/thrift/ThriftFunction.java