nl_tokens: Used to add and remove the listeners required when requesting data from the server .
pl_tokens: function ( store ) { return { /**
               * Adds the listeners required when requesting data from the server.
               */ componentDidMount : function ( ) { store . on ( 'change:' + this . props . componentId , this . onDataReceived ) ; store . on ( 'fail:' + this . props . componentId , this . onError ) ; } , /**
               * Removes the listeners required when requesting data from the server.
               */ componentWillUnmount : function ( ) { <mask> . removeListener ( 'change:' + this . props . componentId , this . onDataReceived ) ; store . removeListener ( 'fail:' + this . props . componentId , this . onError ) ; } } ; }