Enable metrics for all classes

[ITSIK1231995]

i'm running mmsegmentation, and then im using mlflow to visualize the metrics
i need to see the metrics per class,
it used to work by adding the following line to the config file:
evaluation = dict(interval=4000, metric='IoU', pre_eval=True)
but after the update it stopped working

i didn't find anything in the documentation addressing this, in addition it would be nice if some one can link to a site that has all the avilable paramters that the config.py can take

thanks for the support!