Fix TS default export of the plugin instance

types/index.d.ts

@@ -1,7 +1,5 @@
 import { Options } from './options';
 
-export * from './context';
-
 declare module 'chart.js' {
 	interface ChartDataSets {
 		/**
@@ -19,3 +17,9 @@ declare module 'chart.js' {
 		datalabels?: Options
 	}
 }
+
+declare const plugin: object;
+
+export * from './context';
+
+export default plugin;

types/test/exports.ts

@@ -0,0 +1,21 @@
+// https://github.com/chartjs/chartjs-plugin-datalabels/issues/130
+import { Chart } from 'chart.js'
+import { Context } from '../index'
+import Plugin from '../index'
+
+// Plugin instance
+Chart.plugins.register(Plugin)
+Chart.plugins.unregister(Plugin)
+
+const chart = new Chart('id', {
+    plugins: [Plugin]
+})
+
+// Scriptable context
+const ctx: Context = {
+    active: true,
+    chart: chart,
+    datasetIndex: 0,
+    dataIndex: 0,
+    dataset: {}
+}