def seq(elm_type, name = nil, metadata = nil)
      elm_type = type(elm_type)
      name     = name(name)
      meta     = metadata(metadata)

      SeqType.new(elm_type, name, meta)
    end
def seq(elm_type, name = nil, metadata = nil)
      elm_type = type(elm_type)
      name     = name(name)
      meta     = metadata(metadata)

      SeqType.new(elm_type, name, meta)
    end
Collections