Man pages matching name parse::method::signatures::typeconstraint in section 3pm:

Parse::Method::Signatures::TypeConstraint.3pm.en	debian 10 / libparse-method-signatures-perl
Parse::Method::Signatures::TypeConstraint.3pm.en	debian 11 / libparse-method-signatures-perl
Parse::Method::Signatures::TypeConstraint.3pm.en	debian 12 / libparse-method-signatures-perl