ChangeDatasetCumulativeState uses a Metax RPC call to change cumulative_state for a dataset with the given Metax identifier.

FetchDataset syncs a dataset from Metax and returns its Qvain identifier.

Publish stores a dataset in Metax and updates the Qvain database.

RefreshDatasetDirectoryContent uses a Metax RPC call to update directory contents for a directory in a dataset with the given Metax identifier.

UnpublishAndDelete marks a dataset as removed in Metax and deletes it from the Qvain db.

PublishTimeout is how long we wait for response when publishling or unpublishing.

ErrNoIdentifier means we can't find the Metax dataset identifier in created or updated datasets.