Man pages matching name html::template::compiled::formatter in section 3pm:

HTML::Template::Compiled::Formatter.3pm.en	debian 10 / libhtml-template-compiled-perl
HTML::Template::Compiled::Formatter.3pm.en	debian 11 / libhtml-template-compiled-perl
HTML::Template::Compiled::Formatter.3pm.en	debian 12 / libhtml-template-compiled-perl