Man pages matching name moosex::meta::typeconstraint::structured in section 3pm:

MooseX::Meta::TypeConstraint::Structured.3pm.en	debian 10 / libmoosex-types-structured-perl
MooseX::Meta::TypeConstraint::Structured.3pm.en	debian 11 / libmoosex-types-structured-perl
MooseX::Meta::TypeConstraint::Structured.3pm.en	debian 12 / libmoosex-types-structured-perl