Man pages matching name curlopt_path_as_is in section 3:

CURLOPT_PATH_AS_IS.3.en	debian 10 / libcurl4-doc
CURLOPT_PATH_AS_IS.3.en	debian 11 / libcurl4-doc
CURLOPT_PATH_AS_IS.3.en	debian 12 / libcurl4-doc