DeepL Write API Service Specification Updates

The DeepL Pro API (v2 endpoint only) also includes a text improvement function. This function is only available to users with a DeepL API Pro subscription type.

The text improvement function provides the following functionality:

Text	Text to be improved. Only text encoded in accordance with the documentation is supported.
Target language	The language in which your improvements are provided can be one of the following: DE (German) EN-GB (British English) EN-US (American English) ES (Spanish) FR (French) IT (Italian) PT-BR (Brazilian Portuguese) PT-PT (Portuguese)

The text improvement function returns the following representation of the processing result:

Text	The improved text
Target language	The target language specified by the user
Detected source language	The detected source language of the text provided in the request.