nl_tokens: Creates and initializes a Shell object .
pl_tokens: function createShell ( config , callback ) { var shell = new Shell ( config ) ; modules . initialize ( shell ) ; extensions . initialize ( shell ) ; require ( './commands' ) . initialize ( shell ) ; require ( './displayCommands' ) . initialize ( shell ) ; <mask> ( './dataCommands' ) . initialize ( shell ) ; process . nextTick ( function ( ) { callback ( shell ) ; } ) ; }