diff --git a/src/global.ts b/src/global.ts
index 943242a..f249c82 100644
--- a/src/global.ts
+++ b/src/global.ts
@@ -1,6 +1,6 @@
-let State: Global['State'] = {}
-let Actions: Global['Actions'] = {}
-let AsyncState: Global['AsyncState'] = {}
+let State = {}
+let Actions = {}
+let AsyncState = {}
 // Communicate between Provider-Consumer and Hooks
 let Setter: Setter = {
   // classSetter stores the setState from Provider, invoke the classSetter.setState can update the state of Global Provider.
@@ -9,10 +9,10 @@ let Setter: Setter = {
   functionSetter: {}
 }
 
-let subscriptions: Subscriptions = {}
+let subscriptions = {}
 
 let devTools: any
-let withDevTools: boolean = false
+let withDevTools = false
 
 let uid = Math.random() // The unique id of hooks
 
@@ -25,4 +25,4 @@ export default {
   withDevTools,
   uid,
   subscriptions
-}
+} as Global
diff --git a/src/helper.ts b/src/helper.ts
index 411a7ed..3bb44a7 100644
--- a/src/helper.ts
+++ b/src/helper.ts
@@ -28,6 +28,7 @@ const consumerAction = (
     type: 'outer',
     modelName: modelContext.modelName,
     actionName: action.name,
+    Global,
     newState: null,
     params,
     middlewareConfig,
diff --git a/src/index.d.ts b/src/index.d.ts
index 7bebd5f..71ead64 100644
--- a/src/index.d.ts
+++ b/src/index.d.ts
@@ -24,6 +24,11 @@ interface Global {
   AsyncState: {
     [modelName: string]: undefined | ((context?: any) => Promise<Partial<any>>)
   }
+  subscriptions: Subscriptions
+  Setter: Setter
+  devTools: any
+  withDevTools: boolean
+  uid: number
 }
 
 type ClassSetter = React.Dispatch<any> | undefined
@@ -67,6 +72,7 @@ interface BaseContext<S = {}> {
   modelName: string
   next?: Function
   newState: Global['State'] | Function | null
+  Global: Global
 }
 
 interface InnerContext<S = {}> extends BaseContext<S> {
diff --git a/src/index.tsx b/src/index.tsx
index d738f76..00e9ced 100644
--- a/src/index.tsx
+++ b/src/index.tsx
@@ -70,6 +70,7 @@ const getActions = (modelName: string, baseContext: Partial<Context>) => {
           middlewareConfig,
           consumerActions,
           action: action,
+          Global,
           ...baseContext
         }
         await applyMiddlewares(actionMiddlewares, context)
diff --git a/src/middlewares.ts b/src/middlewares.ts
index 711150f..0c9cd4b 100644
--- a/src/middlewares.ts
+++ b/src/middlewares.ts
@@ -1,14 +1,13 @@
-import Global from './global'
 import { setPartialState, timeout, getCache } from './helper'
 // -- Middlewares --
 
-const tryCatch: Middleware<{}> = async (context, restMiddlewares) => {
+const tryCatch: Middleware = async (context, restMiddlewares) => {
   const { next } = context
   await next(restMiddlewares).catch((e: any) => console.log(e))
 }
 
-const getNewState: Middleware<{}> = async (context, restMiddlewares) => {
-  const { action, modelName, consumerActions, params, next } = context
+const getNewState: Middleware = async (context, restMiddlewares) => {
+  const { action, modelName, consumerActions, params, next, Global } = context
   context.newState =
     (await action(
       Global.State[modelName],
@@ -24,6 +23,7 @@ const getNewStateWithCache = (maxTime: number = 5000): Middleware => async (
 ) => {
   const {
     action,
+    Global,
     modelName,
     consumerActions,
     params,
@@ -51,7 +51,7 @@ const setNewState: Middleware = async (context, restMiddlewares) => {
 }
 
 const stateUpdater: Middleware = async (context, restMiddlewares) => {
-  const { modelName, next } = context
+  const { modelName, next, Global } = context
   context.type === 'function' &&
     context.setState &&
     context.setState(Global.State[modelName])
@@ -59,7 +59,7 @@ const stateUpdater: Middleware = async (context, restMiddlewares) => {
 }
 
 const subscription: Middleware = async (context, restMiddlewares) => {
-  const { modelName, actionName, next } = context
+  const { modelName, actionName, next, Global } = context
   if (Global.subscriptions[`${modelName}_${actionName}`]) {
     Global.subscriptions[`${modelName}_${actionName}`]()
   }
@@ -67,6 +67,7 @@ const subscription: Middleware = async (context, restMiddlewares) => {
 }
 
 const consoleDebugger: Middleware = async (context, restMiddlewares) => {
+  const { Global } = context
   console.group(
     `%c ${
       context.modelName
@@ -94,6 +95,7 @@ const consoleDebugger: Middleware = async (context, restMiddlewares) => {
 }
 
 const devToolsListener: Middleware = async (context, restMiddlewares) => {
+  const { Global } = context
   await context.next(restMiddlewares)
   if (Global.withDevTools) {
     Global.devTools.send(
@@ -103,8 +105,8 @@ const devToolsListener: Middleware = async (context, restMiddlewares) => {
   }
 }
 
-const communicator: Middleware<{}> = async (context, restMiddlewares) => {
-  const { modelName, next, actionName } = context
+const communicator: Middleware = async (context, restMiddlewares) => {
+  const { modelName, next, actionName, Global } = context
   if (Global.Setter.classSetter) {
     Global.Setter.classSetter(Global.State)
   }