Fix typings

package.json

@@ -7,8 +7,9 @@
   "author": "CJies <cijies@gmail.com>",
   "license": "MIT",
   "files": ["dist"],
-  "main": "dist/duck.js",
-  "module": "dist/duck.module.js",
+  "main": "./dist/duck.js",
+  "module": "./dist/duck.module.js",
+  "types": "./dist/duck.d.ts",
   "scripts": {
     "precommit": "pretty-quick --staged",
     "prebuild": "rm -rf ./dist",

src/duck.d.ts

@@ -1,7 +1,7 @@
 /**
  * An action type in string
  */
-const ActionType: string;
+type ActionType = string;
 
 /**
  * An object to describe action

src/duck.js.flow

@@ -21,24 +21,22 @@ type ActionCases<S> = {
   [actionType: ActionType]: (S, Action) => void,
 };
 
-declare module 'redux-duck-immer' {
-  /**
-   * Define an action type
-   */
-  declare export function defineType(...actionTypes: string[]): ActionType;
+/**
+ * Define an action type
+ */
+declare export function defineType(...actionTypes: string[]): ActionType;
 
-  /**
-   * Create an action creator
-   */
-  declare export function createAction(
-    actionType: ActionType
-  ): (payload: any) => Action;
+/**
+ * Create an action creator
+ */
+declare export function createAction(
+  actionType: ActionType
+): (payload: any) => Action;
 
-  /**
-   * Create a reducer with immer supports
-   */
-  declare export function createReducer(
-    initState: any,
-    cases: ActionCases<any>
-  ): <S>(state: S, action: Action) => S;
-}
+/**
+ * Create a reducer with immer supports
+ */
+declare export function createReducer(
+  initState: any,
+  cases: ActionCases<any>
+): <S>(state: S, action: Action) => S;