如何将图像/视频/音频发布到Tumblr的API？

So, I've managed to post quotes, texts, links, etc. to Tumblr's API, but I'm wondering how one would go about posting images, videos and audio to their API. I assume posting from a web URL should be easy, but how would you go about posting these assets, for example, from your local file system?So, I've managed to post quotes, texts, links,