feat: Add sample async execution agent snap in

16-agent-execution/code/.gitignore

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+node_modules/

16-agent-execution/code/.npmrc

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+save-exact=true

16-agent-execution/code/README.md

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+## DevRev Snaps TypeScript Template
+
+This repository contains a template for the functions that can be deployed as
+part of Snap-Ins.
+
+### Getting started with the template
+1. Create a new repository from this template.
+2. In the new repository, you can add functions at path `src/functions` where the folder name corresponds to the function name in your manifest file.
+3. Each function you add will also need to be mentioned in `src/function-factory.ts` .
+
+### Testing locally
+You can test your code by adding test events under `src/fixtures` similar to the example event provided. You can add keyring values to the event payload to test API calls as well.
+
+Once you have added the event, you can test your code by running:
+```
+npm install
+npm run start:watch -- --functionName=function_1 --fixturePath=function_1_event.json
+npm run start:watch -- --functionName=function_2 --fixturePath=function_2_event.json
+```
+
+### Adding external dependencies
+You can also add dependencies on external packages in package.json under the "dependencies" key. These dependencies will be made available to your function at runtime and testing.
+
+### Packaging the code
+Once you are done with the testing,
+Run
+```
+npm install
+npm run build
+npm run package
+```
+and ensure it succeeds.
+
+You will see a `build.tar.gz` file is created and you can provide it while creating the snap_in_version.

16-agent-execution/code/babel.config.js

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+/*
+ * Copyright (c) 2023 DevRev, Inc. All rights reserved.
+ */
+
+module.exports = {
+  presets: [
+    ['@babel/preset-env', { targets: { node: 'current' } }],
+    '@babel/preset-typescript',
+  ],
+};

16-agent-execution/code/jest.config.js

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+/*
+ * Copyright (c) 2023 DevRev, Inc. All rights reserved.
+ */
+
+module.exports = {
+  preset: 'ts-jest',
+  testEnvironment: 'node',
+};

16-agent-execution/code/nodemon.json

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+{
+  "execMap": {
+    "ts": "ts-node"
+  }
+}