Can't define operation_timeout in v3.x

We can see [here|https://docs.couchbase.com/nodejs-sdk/2.6/client-settings.html] as in older versions we could define the `operation_timeout` when connecting to the db.

I have seen that the parameter is still used in the C/C++ code of the lib: https://github.com/couchbase/couchnode/search?q=operation_timeout&unscoped_q=operation_timeout

But it is not possible to change its value anymore because the parameter is not accepted in the node function: https://github.com/couchbase/couchnode/blob/master/lib/cluster.js#L76

Is there a way to change the operation_timeout value? If not, could it be possible to add this option again to the code?

Thanks in advance.