Brian Vaughn 41b8c65f1e Add react-is package (#12199) ... Authoritative brand checking library. Can be used without any dependency on React. Plausible replacement for `React.isValidElement.`		2018-02-11 14:08:40 -08:00
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index.js	Add react-is package (#12199)	2018-02-11 14:08:40 -08:00