Fix usage of fs and path inside ES build

package.json

@@ -123,7 +123,7 @@
     "@commitlint/config-conventional": "^9.1.2",
     "@size-limit/preset-small-lib": "^4.6.0",
     "@types/jest": "^26.0.13",
-    "@types/node": "^14.10.1",
+    "@types/node": "^14.11.1",
     "@typescript-eslint/eslint-plugin": "^4.1.0",
     "@typescript-eslint/parser": "^4.1.0",
     "commitizen": "^4.2.1",

src/file-methods.ts

@@ -1,4 +1,7 @@
-export var fs = require('fs')
-export var path = require('path')
+export * as fs from 'fs'
 
-export var readFileSync = fs.readFileSync
+export { readFileSync } from 'fs'
+
+import * as path from 'path'
+
+export { path }

yarn.lock

@@ -1577,10 +1577,10 @@
   resolved "https://registry.yarnpkg.com/@types/node/-/node-14.6.4.tgz#a145cc0bb14ef9c4777361b7bbafa5cf8e3acb5a"
   integrity sha512-Wk7nG1JSaMfMpoMJDKUsWYugliB2Vy55pdjLpmLixeyMi7HizW2I/9QoxsPCkXl3dO+ZOVqPumKaDUv5zJu2uQ==
 
-"@types/node@^14.10.1":
-  version "14.10.1"
-  resolved "https://registry.yarnpkg.com/@types/node/-/node-14.10.1.tgz#cc323bad8e8a533d4822f45ce4e5326f36e42177"
-  integrity sha512-aYNbO+FZ/3KGeQCEkNhHFRIzBOUgc7QvcVNKXbfnhDkSfwUv91JsQQa10rDgKSTSLkXZ1UIyPe4FJJNVgw1xWQ==
+"@types/node@^14.11.1":
+  version "14.11.1"
+  resolved "https://registry.yarnpkg.com/@types/node/-/node-14.11.1.tgz#56af902ad157e763f9ba63d671c39cda3193c835"
+  integrity sha512-oTQgnd0hblfLsJ6BvJzzSL+Inogp3lq9fGgqRkMB/ziKMgEUaFl801OncOzUmalfzt14N0oPHMK47ipl+wbTIw==
 
 "@types/normalize-package-data@^2.4.0":
   version "2.4.0"