module ActiveFedora::Model::ClassMethods

def load_instance(pid)

of self, which may or may not be what you want.
ActiveFedora will try to parse the results into the current type
pass an pid into this method, regardless of Fedora model type, and
Load an instance with the following pid. Note that you can actually
def load_instance(pid)
  Fedora::Repository.instance.find_model(pid, self)
end