title: Translate dataframe with DeepL
body: <p>I would like to translate (using DeepL) the text inside the df [&quot;text&quot;] column, where in each line there is a sentence.
  The text is not written in a single language, so I'd like to automatically detect the language of the text and put the translation in a new column called df [&quot;translated&quot;].</p>
  <p>Thank you</p>
  <p>I have DeepL's free authentication key but I can't figure out how to use it, I am a rookie.</p>