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The code in the document does not work

4

Hi. The code in the [document](https://www.python-httpx.org/advanced/#:~:text=files%20%3D%20%7B%27upload%2Dfile%27%3A%20(None%2C%20%27text%20content%27%2C%20%27text/plain%27)%7D) does not work ``` import httpx files = {'upload-file': (None, 'text content', 'text/plain')} r = httpx.post("https://httpbin.org/post", files=files) print(r.text) ``` The error is ``` TypeError:...