# Pastebin J1WzfZ3q
fernando@MBP-de-Fernando test-meta6 % cat abc/Bla.pm6                                
unit class Bla:ver<5.0.0>;

has $.a = 5;
fernando@MBP-de-Fernando test-meta6 % cat cde/Bla.pm6                                
unit class Bla:ver<6.0.0>;

has $.a = 6;