how to modify weight NDarray which is not writable?

[zhaoningning]

hello guys:
i'm writing a layer using mxnet CustomOp api, and in this layer,i want to modify weights data which is not writable( throw a error). Is there a way to solve this problem? Mxnet's optimizer certainly can update the weights , how does it work?

[eric-haibin-lin]

@piiswrong is there a way to declare inputs are mutated with custom op?

[szha]

@apache/mxnet-committers: This issue has been inactive for the past 90 days. It has no label and needs triage.

For general "how-to" questions, our user forum (and Chinese version) is a good place to get help.