:canonical      # canonical dispatch order
    :ascendant      # most-derived first, like destruction order
    :descendant     # least-derived first, like construction order
    :preorder       # like Perl 5 dispatch
    :breadth        # like multimethod dispatch

and some that specify selection criteria:

    :super              # only immediate parent classes
    :method(Str)        # only classes containing method declaration
    :omit(Selector)     # only classes that don't match selector
    :include(Selector)  # only classes that match selector