module Gorillib::Model::PositionalFields
give each field the next position in order
@example
class Foo include Gorillib::Model field :bob, String # not positional field :zoe, String, position: 0 # positional 0 (explicit) end class Subby < Foo include Gorillib::Model::PositionalFields field :wun, String # positional 1 end Foo.field :nope, String # not positional Subby.field :toofer, String # positional 2
@note: make sure you’re keeping positionals straight in super classes, or in anything added after this.