Add instrumentation for discord.py library

What problem do you want to solve?

The discord.py library provides a framework for writing Discord bots with helpers for commands and listeners. There is nothing providing tracing support for this at the moment, limiting the out-of-the-box instrumentation experience to the underlying aiohttp library.

Describe the solution you'd like

discord.py has events (on_message, on_member_join, ...) and commands. Having traces on these events would provide meaningful data, showing what happens when a user interacts with the bot.

Describe alternatives you've considered

I've started drafting my own implementation for my bot over here, but I realized I'm not the only one who could benefit from this.

Additional Context

No response

Would you like to implement a fix?

Yes

Tip

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Start with the discord.py event reference and commands documentation, then review the linked BallsDex-DiscordBot draft for an existing implementation direction. Compare that approach with this repository’s instrumentation conventions. Done means traces are available for meaningful discord.py events and commands, with behavior verified for representative bot interactions.