npm_and_yarn in /, /example for @react-native/babel-preset, @react-native/metro-config, @react-native/typescript-config, @react-native/babel-preset, @react-native/metro-config, @react-native/typescript-config - Update #1396781555

npm_and_yarn in /, /example for @react-native/babel-preset, @react-native/metro-config, @react-native/typescript-config, @react-native/babel-preset, @react-native/metro-config, @react-native/typescript-config - Update #1396781555 #748