Nank for gank by React-Native

RxLifecycle : https://github.com/trello/RxLifecycle
RxJava : https://github.com/ReactiveX/RxJava
RxAndroid : https://github.com/ReactiveX/RxAndroid
retrofit : https://github.com/square/retrofit
RxPermissions : https://github.com/tbruyelle/RxPermissions

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