Man pages matching name moosex::method::signatures in section 3pm:

MooseX::Method::Signatures.3pm.en	debian 10 / libmoosex-method-signatures-perl
MooseX::Method::Signatures.3pm.en	debian 11 / libmoosex-method-signatures-perl
MooseX::Method::Signatures.3pm.en	debian 12 / libmoosex-method-signatures-perl