add hw2

node_modules/@tootallnate/quickjs-emscripten/dist/context-asyncify.d.ts

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+import { QuickJSContext } from "./context";
+import { QuickJSAsyncEmscriptenModule } from "./emscripten-types";
+import { QuickJSAsyncFFI } from "./variants";
+import { JSRuntimePointer } from "./types-ffi";
+import { Lifetime } from "./lifetime";
+import { QuickJSModuleCallbacks } from "./module";
+import { QuickJSAsyncRuntime } from "./runtime-asyncify";
+import { ContextEvalOptions, QuickJSHandle } from "./types";
+import { VmCallResult } from "./vm-interface";
+export type AsyncFunctionImplementation = (this: QuickJSHandle, ...args: QuickJSHandle[]) => Promise<QuickJSHandle | VmCallResult<QuickJSHandle> | void>;
+/**
+ * Asyncified version of [[QuickJSContext]].
+ *
+ * *Asyncify* allows normally synchronous code to wait for asynchronous Promises
+ * or callbacks. The asyncified version of QuickJSContext can wait for async
+ * host functions as though they were synchronous.
+ */
+export declare class QuickJSAsyncContext extends QuickJSContext {
+    runtime: QuickJSAsyncRuntime;
+    /** @private */
+    protected module: QuickJSAsyncEmscriptenModule;
+    /** @private */
+    protected ffi: QuickJSAsyncFFI;
+    /** @private */
+    protected rt: Lifetime<JSRuntimePointer>;
+    /** @private */
+    protected callbacks: QuickJSModuleCallbacks;
+    /**
+     * Asyncified version of [[evalCode]].
+     */
+    evalCodeAsync(code: string, filename?: string, 
+    /** See [[EvalFlags]] for number semantics */
+    options?: number | ContextEvalOptions): Promise<VmCallResult<QuickJSHandle>>;
+    /**
+     * Similar to [[newFunction]].
+     * Convert an async host Javascript function into a synchronous QuickJS function value.
+     *
+     * Whenever QuickJS calls this function, the VM's stack will be unwound while
+     * waiting the async function to complete, and then restored when the returned
+     * promise resolves.
+     *
+     * Asyncified functions must never call other asyncified functions or
+     * `import`, even indirectly, because the stack cannot be unwound twice.
+     *
+     * See [Emscripten's docs on Asyncify](https://emscripten.org/docs/porting/asyncify.html).
+     */
+    newAsyncifiedFunction(name: string, fn: AsyncFunctionImplementation): QuickJSHandle;
+}