nl_tokens: Make data observable
pl_tokens: function makeDataObservable ( ctx ) { const data = ctx . data ; if ( ! data ) { return ; } if ( isPlainObject ( <mask> ) ) { /* eslint-disable no-use-before-define */ let observer = new Observer ( ctx , data ) ; Object . defineProperties ( ctx , proxyObject ( observer , data , ctx ) ) ; return observer ; } let err = new Error ( 'data require plain object' ) ; err . isTypeError = true ; throw err ; }