package MyClass;

use Moo;
#use Role::Tiny();

sub BUILD {
    my $self = shift;

#    Role::Tiny->apply_roles_to_package( __PACKAGE__, 'MyClass::Child' );
    'Moo::Role'->apply_roles_to_package( __PACKAGE__, 'MyClass::Child' );

    return $self;
};

sub foo { return 'foo'; }

1;