[@react-native-community/netinfo_v4.x.x] Export NetInfo enumerations (#…

…3610)

NetInfo packages exports enums to our reuse. The enums are exported here: https://github.com/react-native-community/react-native-netinfo/blob/master/src/index.ts#L215

Referrence:
https://github.com/react-native-community/react-native-netinfo/blob/master/src/internal/types.ts#L10
https://github.com/react-native-community/react-native-netinfo/blob/master/src/internal/types.ts#L22

definitions/npm/@react-native-community/netinfo_v4.x.x/flow_v0.69.x-/netinfo_v4.x.x.js

@@ -50,6 +50,24 @@ declare module '@react-native-community/netinfo' {
     listener: (NetInfoState) => mixed
   ): NetInfoSubscription;
 
+  declare export var NetInfoStateType: $ReadOnly<{|
+    unknown: "unknown",
+    none: "none",
+    cellular: "cellular",
+    wifi: "wifi",
+    bluetooth: "bluetooth",
+    ethernet: "ethernet",
+    wimax: "wimax",
+    vpn: "vpn",
+    other: "other"
+  |}>
+
+  declare export var NetInfoCellularGeneration: $ReadOnly<{|
+    '2g': "2g",
+    '3g': "3g",
+    '4g': "4g"
+  |}>
+
   declare export default $ReadOnly<{|
     fetch: typeof fetch,
     addEventListener: typeof addEventListener,