Call this function to get information on the performed action after curl::perform was called
INFO = curl::info(CURL,info)
The argument info should be string and can take one of the valueslisted in the following sections. The return value is either a string, integer or real value according to the type of the requested information. The possible string arguments should be used in upper case letters, and should be precisely typed, no abbreviations or alternate forms of the words are recognized by the subroutine.
Note that the following sections were mainly compiled from the documentation of the original C language CURL package documentation curl_easy_getinfo.3 man page.