From 84bd54ba4025a33f4e311ec66d81d58b45e54d6b Mon Sep 17 00:00:00 2001
From: Nikita Galkin <nikita@galk.in>
Date: Sat, 23 Jun 2018 16:32:07 +0300
Subject: Improve 'web3-provider-engine' typings

---
 packages/typescript-typings/CHANGELOG.json                     |  9 +++++++++
 .../typescript-typings/types/web3-provider-engine/index.d.ts   | 10 +++++++++-
 2 files changed, 18 insertions(+), 1 deletion(-)

diff --git a/packages/typescript-typings/CHANGELOG.json b/packages/typescript-typings/CHANGELOG.json
index 5b5d5c31d..c76e0d4c0 100644
--- a/packages/typescript-typings/CHANGELOG.json
+++ b/packages/typescript-typings/CHANGELOG.json
@@ -1,4 +1,13 @@
 [
+    {
+        "version": "0.4.2",
+        "changes": [
+            {
+                "note": "Improve 'web3-provider-engine' typings",
+                "pr": 768
+            }
+        ]
+    },
     {
         "timestamp": 1529397769,
         "version": "0.4.1",
diff --git a/packages/typescript-typings/types/web3-provider-engine/index.d.ts b/packages/typescript-typings/types/web3-provider-engine/index.d.ts
index 1733f2731..72ef434a7 100644
--- a/packages/typescript-typings/types/web3-provider-engine/index.d.ts
+++ b/packages/typescript-typings/types/web3-provider-engine/index.d.ts
@@ -1,6 +1,12 @@
 declare module 'web3-provider-engine' {
     import { Provider, JSONRPCRequestPayload, JSONRPCResponsePayload } from 'ethereum-types';
+    interface Web3ProviderEngineOptions {
+        pollingInterval?: number;
+        blockTracker?: any;
+        blockTrackerProvider?: any;
+    }
     class Web3ProviderEngine implements Provider {
+        constructor(options?: Web3ProviderEngineOptions);
         public on(event: string, handler: () => void): void;
         public send(payload: JSONRPCRequestPayload): void;
         public sendAsync(
@@ -8,7 +14,9 @@ declare module 'web3-provider-engine' {
             callback: (error: null | Error, response: JSONRPCResponsePayload) => void,
         ): void;
         public addProvider(provider: any): void;
-        public start(): void;
+        // start block polling
+        public start(callback?: () => void): void;
+        // stop block polling
         public stop(): void;
     }
     export = Web3ProviderEngine;
-- 
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