import webpack = require('webpack'); import WebpackChunkHashPlugin = require('webpack-chunk-hash'); const a: webpack.Configuration = { entry: 'test.js', plugins: [ new WebpackChunkHashPlugin() ] }; const b: webpack.Configuration = { entry: 'test.js', plugins: [ new WebpackChunkHashPlugin({algorithm: 'sha-256', digest: 'latin1', additionalHashContent: () => 'test'}) ] };