$//$ Complete me #include "customparser.h$"$ #include #include using namespace std; const char$*$ error$\_$msg$\_1=$ "Cannot read integer n$"$; const char$*$ error$\_$msg$\_2=$ "Error in content parsing"; const char$*$ error$\_$msg$\_3=$ "Error in user parsing"; $//$ To Do $-$ Complete this function void CustomFormatParser::parse$($std::istream& is$,$ std::vector& content, std::vector& users$)\{//$separatte into $3$ parts, the first bullet point the second the third int n; if$(!($is $>>$ n$))\{$ throw ParserError$($error$\_$msg$\_1)$; $\}$ string line; getline$($is$,$line$)$; $//$to move on to next for$($int i $=0$; i $<$ n; i$++)\{$ int id$,$ type,numReviews,totalStars,rating,numEpisodes; std::string name, viewersline; std::vectorviewers; if$(!($is$>>$id$>>$type$))\{$ throw ParserError$($error$\_$msg$\_2)$; $\}$ std::getline$($is$,$line$)$; std::getline$($is$>>$std::ws$,$name$)$; if$(!($is$>>$numReviews$>>$totalStars$>>$rating$))\{$ throw ParserError$($error$\_$msg$\_2)$; $\}$ if$($type $==1)\{$ if$(!($is $>>$ numEpisodes$))\{$ throw ParserError$($error$\_$msg$\_2)$; $\}\}$ std::getline$($is$>>$std::ws$,$viewersline$)$; if$(!$viewersline.empty$())\{$ std::stringstream viewerStream $($viewersline$)$; std::string viewer; while$($viewerStream $>>$ viewer$)\{$ viewers.push$\_$back$($viewer$)$; $\}\}$ Content$*$ newContent $=$ nullptr; if$($type $==0)\{$ newContent $=$ new Movie$($id$,$name,numReviews,totalStars,rating$)$; $\}$ else if$($type $==1)\{$ newContent $=$ new Series$($id$,$name,numReviews,totalStars,rating,numEpisodes$)$; $\}$ content.push$\_$back$($newContent$)$; $\}$ while$($getline$($is$>>$std::ws$,$line$))\{$ std::string username; if$(!($is $>>$ username$))\{$ break; $\}$ int ratingLimit; if$(!($is$>>$ratingLimit$))\{$ throw ParserError$($error$\_$msg$\_3)$; $\}$ User$*$ newUser $=$ new User$($username$,$ratingLimit$)$; users.push$\_$back$($newUser$)$; $\}\}$