Attempt to document Mu.does

gistfile1.txt

=head2 routine does

    method does(Mu $type)      returns Bool:D

Returns True if and only if the invocant conforms to type C<$type>.

    my $d = Date.new('2016-06-03');
    say $d.does(Dateish);             # True    (Date does role Dateish)
    say $d.does(Any);                 # True    (Date is a subclass of Any)
    say $d.does(DateTime);            # False   (Date is not a subclass of DateTime)
    
A more idiomatic way of doing this would be to use the smart match operator.

    my $d = Date.new('2016-06-03');
    say $d ~~ Dateish;                # True
    say $d ~~ Any;                    # True
    say $d ~~ DateTime;               # False