Add builtin method TryGetValue
Add ArrayUtils.TryGetValueFromDictionary()
Remove validity check
fix condition error
Merge branch 'master' into fix_multioutput_replication
Add test case for TryGetValueFromDictionary()
Use TryGetValueFromDictionary() in multi ouptut node
Rename function name
Remove unnecessary namespace
Add prefix "__" to  TryGetValueFromNestedDictionaries() builtin function
Merge pull request #2101 from ke-yu/fix_multioutput_replication

Support indexing into the return value from multi-ouput node