nl_tokens: Helper function to insert some documents to the given db and collection
pl_tokens: function insertDocsToDb ( dburl , collectionName , docs , cb ) { MongoClient . connect ( dburl , function ( err , db ) { if ( err ) { return cb ( err ) ; } var col = db . collection ( collectionName ) ; <mask> . insertMany ( docs , function ( err , result ) { if ( err ) { return cb ( err ) ; } return cb ( null , result ) ; } ) ; } ) ; }