Well that was sure a nice try and at least it wasn't an error. The curl command looks good to me. I would have also tried the final boundary as --boundary123-- per the RFC.
I think the main takeaway for me is that I'm going to start using ChatGPT a lot more to ask questions like this! Not having any training on info post-2021 is the biggest limitation when researching issues with newer products.
Bard does a much better job with questions related to newer than 2021 data, such as pricing, as it apparently includes its current web site scraping with its results.