# Pastebin Odx4BqTl
fernando@MBP-de-Fernando Red3 % cat lib/MetamodelX/Red/Schema.pm6 
class MetamodelX::Red::Schema is Metamodel::EnumHOW {

    method compose(Mu \schema) {
        self.Metamodel::EnumHOW::compose(schema);
    }
}
fernando@MBP-de-Fernando Red3 % cat lib/Red/Schema.pm6
use MetamodelX::Red::Schema;
my package EXPORTHOW {
    package DECLARE {
        constant schema = MetamodelX::Red::Schema;
    }
}

fernando@MBP-de-Fernando Red3 % perl6 -Ilib -MRed::Schema -e '   


schema Bla<bla ble bli>

'
===SORRY!=== Error while compiling -e
Unable to parse schema definition
at -e:4
------> schema Bla⏏<bla ble bli>
    expecting any of:
        generic role