nl_tokens: Checks if value is likely an arguments object .
pl_tokens: function isArguments$1 ( value ) { // Safari 8.1 makes `arguments.callee` enumerable in strict mode. return isArrayLikeObject$1 ( value ) && hasOwnProperty$6 . call ( value , 'callee' ) && ( ! propertyIsEnumerable$1 . call ( value , 'callee' ) || objectToString$7 . call ( <mask> ) == argsTag$1 ) ; }