Fix type definition (#30)

index.d.ts

@@ -1,32 +1,34 @@
-export interface Limit {
-	/**
-	@param fn - Promise-returning/async function.
-	@param arguments - Any arguments to pass through to `fn`. Support for passing arguments on to the `fn` is provided in order to be able to avoid creating unnecessary closures. You probably don't need this optimization unless you're pushing a lot of functions.
-	@returns The promise returned by calling `fn(...arguments)`.
-	*/
-	<Arguments extends unknown[], ReturnType>(
-		fn: (...arguments: Arguments) => PromiseLike<ReturnType> | ReturnType,
-		...arguments: Arguments
-	): Promise<ReturnType>;
-
-	/**
-	The number of promises that are currently running.
-	*/
-	readonly activeCount: number;
-
-	/**
-	The number of promises that are waiting to run (i.e. their internal `fn` was not called yet).
-	*/
-	readonly pendingCount: number;
-
-	/**
-	Discard pending promises that are waiting to run.
-
-	This might be useful if you want to teardown the queue at the end of your program's lifecycle or discard any function calls referencing an intermediary state of your app.
-
-	Note: This does not cancel promises that are already running.
-	*/
-	clearQueue: () => void;
+declare namespace pLimit {
+	interface Limit {
+		/**
+		@param fn - Promise-returning/async function.
+		@param arguments - Any arguments to pass through to `fn`. Support for passing arguments on to the `fn` is provided in order to be able to avoid creating unnecessary closures. You probably don't need this optimization unless you're pushing a lot of functions.
+		@returns The promise returned by calling `fn(...arguments)`.
+		*/
+		<Arguments extends unknown[], ReturnType>(
+			fn: (...arguments: Arguments) => PromiseLike<ReturnType> | ReturnType,
+			...arguments: Arguments
+		): Promise<ReturnType>;
+
+		/**
+		The number of promises that are currently running.
+		*/
+		readonly activeCount: number;
+
+		/**
+		The number of promises that are waiting to run (i.e. their internal `fn` was not called yet).
+		*/
+		readonly pendingCount: number;
+
+		/**
+		Discard pending promises that are waiting to run.
+
+		This might be useful if you want to teardown the queue at the end of your program's lifecycle or discard any function calls referencing an intermediary state of your app.
+
+		Note: This does not cancel promises that are already running.
+		*/
+		clearQueue: () => void;
+	}
 }
 
 /**
@@ -35,4 +37,6 @@ Run multiple promise-returning & async functions with limited concurrency.
 @param concurrency - Concurrency limit. Minimum: `1`.
 @returns A `limit` function.
 */
-export default function pLimit(concurrency: number): Limit;
+declare function pLimit(concurrency: number): pLimit.Limit;
+
+export = pLimit;

index.test-d.ts

@@ -1,5 +1,5 @@
 import {expectType} from 'tsd';
-import pLimit from '.';
+import pLimit = require('.');
 
 const limit = pLimit(1);