This is a feature request for a timer/countdown plugin for the Hangouts bot. First, a contributor should explore the repository structure, paying attention to the /plugins directory for examples of existing plugins. They should understand the bot's event loop and how plugins are registered. Since the issue lacks concrete requirements, it would be helpful to ask clarifying questions in the comments about desired features (e.g., command syntax, alert type). The implementation likely involves using Python's threading or asyncio for timers, and integrating with the bot's message handling.
