Man pages matching name net::amazon::s3::signature::v4implementation in section 3pm:

Net::Amazon::S3::Signature::V4Implementation.3pm.en	debian 10 / libnet-amazon-s3-perl
Net::Amazon::S3::Signature::V4Implementation.3pm.en	debian 11 / libnet-amazon-s3-perl
Net::Amazon::S3::Signature::V4Implementation.3pm.en	debian 12 / libnet-amazon-s3-perl