add typings for the public API (#2)

* add typings for the public API

* Update package.json

Co-Authored-By: shiftkey <brendan@github.com>

index.d.ts

@@ -0,0 +1,25 @@
+export function clearAuthorizationCache(): void;
+
+export function createWriteStream(filePath: string): void;
+
+export function makeTree(
+  directoryPath: string,
+  callback: (error: Error | null) => void
+): void;
+
+export function recursiveCopy(
+  sourcePath: string,
+  destinationPath: string,
+  callback: (error: Error | null) => void
+): void;
+
+export function symlink(
+  target: string,
+  filePath: string,
+  callback: (error: Error | null) => void
+): void;
+
+export function unlink(
+  filePath: string,
+  callback: (error: Error | null) => void
+): void;

package.json

@@ -3,6 +3,7 @@
   "version": "0.1.7",
   "description": "Manipulate files with escalated privileges",
   "main": "index.js",
+  "types": "index.d.ts",
   "scripts": {
     "test": "standard && mocha"
   },