Not able to add my Own loacle like 'tn' instead of using ' en'

[Pardeep03315]

Hi all , i want to use 'tn' as my own one of the famous country languages . When i do this ...default language 'en' is tranlated . Can i change 'en' to my custom loacale in translation object of react-native-i18n

want to use like this

I18n.translations = { en: { hello_world: 'Hello, World!' }, tn: { hello_world:'எப்படி இருக்கிறீர்கள் !' } };