You manage repositories with GitHub and need a PowerShell script to run automatically before rebase operations. Which mechanism should you use to trigger the script?

A webhook is the correct mechanism because it allows GitHub to send an HTTP POST payload to a specified URL when certain events occur, such as a rebase operation. This payload can then trigger an external script, like your PowerShell script, to execute. A package is a collection of compiled code or resources and doesn't inherently trigger actions based on repository events. GitHub Copilot is an AI-powered code completion tool, not a mechanism for event-driven script execution. A gist is a way to share code snippets and doesn't have the functionality to trigger actions on repository events.