Added flow config and fixed error.

.flowconfig

@@ -0,0 +1,45 @@
+[ignore]
+.*/KeychainExample/*
+
+# We fork some components by platform.
+.*/*.web.js
+.*/*.android.js
+
+# Some modules have their own node_modules with overlap
+.*/node_modules/node-haste/.*
+
+# Ignore react-tools where there are overlaps, but don't ignore anything that
+# react-native relies on
+.*/node_modules/react-tools/src/vendor/core/ExecutionEnvironment.js
+.*/node_modules/react-tools/src/browser/eventPlugins/ResponderEventPlugin.js
+.*/node_modules/react-tools/src/browser/ui/React.js
+.*/node_modules/react-tools/src/core/ReactInstanceHandles.js
+.*/node_modules/react-tools/src/event/EventPropagators.js
+
+# Ignore commoner tests
+.*/node_modules/commoner/test/.*
+
+# See https://github.com/facebook/flow/issues/442
+.*/react-tools/node_modules/commoner/lib/reader.js
+
+# Ignore jest
+.*/react-native/node_modules/jest-cli/.*
+
+[include]
+
+[libs]
+node_modules/react-native/Libraries/react-native/react-native-interface.js
+
+[options]
+module.system=haste
+
+suppress_type=$FlowIssue
+suppress_type=$FlowFixMe
+suppress_type=$FixMe
+
+suppress_comment=\\(.\\|\n\\)*\\$FlowFixMe\\($\\|[^(]\\|(\\(>=0\\.\\(1[0-3]\\|[0-9]\\).[0-9]\\)? *\\(site=[a-z,_]*react_native[a-z,_]*\\)?)\\)
+suppress_comment=\\(.\\|\n\\)*\\$FlowIssue\\((\\(>=0\\.\\(1[0-3]\\|[0-9]\\).[0-9]\\)? *\\(site=[a-z,_]*react_native[a-z,_]*\\)?)\\)? #[0-9]+
+suppress_comment=\\(.\\|\n\\)*\\$FlowFixedInNextDeploy
+
+[version]
+0.12.0

Enums/Protocols.js

@@ -1,6 +1,6 @@
 /**
  * Reference: <https://developer.apple.com/library/ios/documentation/Security/Reference/keychainservices/index.html#//apple_ref/doc/constant_group/Protocol_Values>
- * @providesModule KeychainAuthenticationTypesEnum
+ * @providesModule KeychainProtocolsEnum
  */
 'use strict';
 

package.json

@@ -4,7 +4,7 @@
   "description": "Keychain Access for React Native",
   "main": "index.ios.js",
   "scripts": {
-    "test": "echo \"Error: no test specified\" && exit 1"
+    "test": "flow"
   },
   "keywords": [
     "react-native",