How do I query a bundle to submit it when I am using Metamask?

The guide here says " Once all the transactions you want to include in your bundle are added to the queue, query the bundle with GET /bundle?id=<YOUR_BUNDLE_ID> and send the returned signed transactions to Flashbots as a bundle." I understand everything up to this point, and have already successfully used flashbots in the past, but only for simple transactions and contract interactions, never for bundled transactions. How to I query this within metamask? Or do I have to use something else for this query?