nl_tokens: Create the give dataset if it doesn t no exist or update the existing one . Should return the datasetClient instance in the callback
pl_tokens: function ( datasetClientId , fields , callback ) { fields . <mask> = datasetClientId ; return metrics . timeAsyncFunc ( metrics . KEYS . MONGODB_OPERATION_TIME , doUpdateDatasetClient ) ( datasetClientId , fields , true , callback ) ; }