nl_tokens: Will attempt to purchase this product .
pl_tokens: function ( config ) { if ( ! config . success ) { Ext . Logger . error ( 'You must specify a `success` callback for `#purchase` to work.' ) ; return false ; } if ( ! config . failure ) { Ext . Logger . error ( 'You must specify a `failure` callback for `#purchase` to work.' ) ; return false ; } Ext . device . Communicator . send ( { command : 'Purchase#purchase' , identifier : this . get ( 'productIdentifier' ) , callbacks : { <mask> : config . success , failure : config . failure } , scope : config . scope || this } ) ; }