Is it possible to set encoding type for form data of httpx.post?

[Nisekoi5]

I use machine translation

Some websites do not use utf-8 (They are too old 😀) , and using utf-8 encoding will cause it to fail to work
Is there a way to explicitly specify the encoding? My manual transmission of encoded data will result in a second encoding
I tried the following methods and it doesn't work

data = {
    "message1": "测试",
    "message2": "测试".encode("gbk"),
    "message3": quote("测试", encoding="gbk"),
}
result = httpx.post("https://httpbin.org/post", data=data)
# data obtained
  "form": {
    "message1": "\u6d4b\u8bd5",
    "message2": "b'\\xb2\\xe2\\xca\\xd4'",
    "message3": "%B2%E2%CA%D4"
  }

The way the form is coded seems to be written in the source code? Is there a way to modify the encoding when sending?
thanks for your answer

httpx/httpx/_content.py

Line 145 in 6a1841b

body = urlencode(plain_data, doseq=True).encode("utf-8")

[lovelydinosaur]

Is there a way to modify the encoding when sending?

I guess you'd need to send this as pre-encoding bytes, setting the Content-Type header explicitly?...

data = {"message1": "测试".encode("gbk")}
content = urlencode(data)
httpx.post(url, content=content, headers={"Content-Type": "application/x-www-form-urlencoded"})

[Nisekoi5]

This works fine, thanks for your answer!