From 7ea3286726d441281a7189bd51bf377563ab13db Mon Sep 17 00:00:00 2001
From: Thomas Watson <w@tson.dk>
Date: Tue, 17 Nov 2020 11:53:57 +0100
Subject: [PATCH 1/2] Add TypeScript definition tests

To run them, use: `npm run test:types`
---
 package.json               |  9 +++++++--
 test/types/index.test-d.ts | 14 ++++++++++++++
 2 files changed, 21 insertions(+), 2 deletions(-)
 create mode 100644 test/types/index.test-d.ts

diff --git a/package.json b/package.json
index 8dc5a4772a..e9a31b05c2 100644
--- a/package.json
+++ b/package.json
@@ -21,11 +21,15 @@
     "require": "./index.js"
   },
   "types": "./index.d.ts",
+  "tsd": {
+    "directory": "test/types"
+  },
   "scripts": {
     "install": "node-gyp-build",
     "recompile": "node-gyp build",
-    "test": "./node_modules/.bin/mocha test/**.test.js --recursive",
+    "test": "./node_modules/.bin/mocha test/**.test.js --recursive && npm run test:types",
     "test2": "./node_modules/.bin/mocha tests -u tdd",
+    "test:types": "tsd",
     "benchmark": "node ./benchmark/index.js",
     "benchmark-ll": "node ./benchmark/low-level.js"
   },
@@ -46,6 +50,7 @@
     "mkdirp": "^1.0.4",
     "mocha": "^8.1.3",
     "node-gyp": "^7.1.0",
-    "rimraf": "^3.0.2"
+    "rimraf": "^3.0.2",
+    "tsd": "^0.13.1"
   }
 }
diff --git a/test/types/index.test-d.ts b/test/types/index.test-d.ts
new file mode 100644
index 0000000000..4b63239297
--- /dev/null
+++ b/test/types/index.test-d.ts
@@ -0,0 +1,14 @@
+import { expectType } from 'tsd'
+import { open, RootDatabase } from '../..'
+
+const path = 'type-test-store'
+
+expectType<RootDatabase>(open(path, { compression: true }))
+expectType<RootDatabase>(open({ path, compression: true }))
+
+const defaultStore = open({ path, compression: true })
+expectType<boolean>(await defaultStore.put('foo', { bar: 'baz' }))
+expectType<any>(defaultStore.get('foo'))
+
+const typedStore = open<string>({ path, compression: true })
+expectType<string | undefined>(typedStore.get('foo'))

From 3325c2bd5e7c80f86657538a91717bf303f8f4c6 Mon Sep 17 00:00:00 2001
From: Thomas Watson <w@tson.dk>
Date: Tue, 17 Nov 2020 11:54:37 +0100
Subject: [PATCH 2/2] Fix TypeScript definitions

---
 index.d.ts | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/index.d.ts b/index.d.ts
index 3ebc5da50e..48d11c4e80 100644
--- a/index.d.ts
+++ b/index.d.ts
@@ -1,8 +1,10 @@
+import { EventEmitter } from 'events'
+
 declare module 'lmdb-store' {
 	export function open<V = any, K extends Key = Key>(path: string, options: RootDatabaseOptions): RootDatabase<V, K>
 	export function open<V = any, K extends Key = Key>(options: RootDatabaseOptionsWithPath): RootDatabase<V, K>
 
-	class Database<V = any, K extends Key = Key> extends NodeJS.EventEmitter {
+	class Database<V = any, K extends Key = Key> extends EventEmitter {
 		get(id: K): V | undefined
 		getEntry(id: K): {
 			value: V | undefined