nl_tokens: wrap callbacks ( success error ) so that the callbacks will be called as a continuations of the resolve or reject call using the __asl_wrapper created above .
pl_tokens: function bind ( fn ) { if ( typeof fn !== 'function' ) return fn ; return wrapCallback ( function ( val ) { var <mask> = ( promise . __asl_wrapper || propagateAslWrapper ) ( this , fn , val , next ) ; if ( result . error ) { throw result . errorVal } else { return result . returnVal } } ) ; }