Include @actions/io

src/async-function.ts

@@ -1,6 +1,7 @@
 import * as core from '@actions/core'
 import {GitHub} from '@actions/github'
 import {Context} from '@actions/github/lib/context'
+import * as io from '@actions/io'
 
 const AsyncFunction = Object.getPrototypeOf(async () => null).constructor
 
@@ -8,6 +9,7 @@ type AsyncFunctionArguments = {
   context: Context
   core: typeof core
   github: GitHub
+  io: typeof io
   require: NodeRequire
 }