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Hi! I want to follow this guide <https://www.pulumi.com/docs/guides/testing/unit/> but when i run `mocha -r ts-node/register ec2tests.ts`    with mocha this message appears `ERROR: Error: Cannot find module 'ts-node/register'`
`Require stack:`

do you have `ts-node` in your dependencies in your package.json? You may need to install it globally.

Also, can we try to avoid posting questions in multiple channels? It leads to duplicate answers:

<https://pulumi-community.slack.com/archives/CRH5ENVDX/p1602251722101300>