Man pages matching name test::cpan::meta::json in section 3pm:

Test::CPAN::Meta::JSON.3pm.en	debian 10 / libtest-cpan-meta-json-perl
Test::CPAN::Meta::JSON.3pm.en	debian 11 / libtest-cpan-meta-json-perl
Test::CPAN::Meta::JSON.3pm.en	debian 12 / libtest-cpan-meta-json-perl