returnkeytype for textarea

I am developing an application using "native-base": "^2.12.1", with "react-native": "0.59.9",

I have a form where i have textarea for input field. It is last field of my form. So i'm trying to use returnkeytype="done" which seems not working! but its okay with Input/TextInput. Isn't there any return key type for Textarea input field? If not what should i use? I don't want to use any custom function to hide the keyboard. I'm looking for returnkeytype solution, which will indicate the "tick" button on the keyboard.