class ActiveFedora::Associations::IndirectlyContainsAssociation

def container
  @container ||= begin
    IndirectContainer.find_or_initialize(ActiveFedora::Base.uri_to_id(uri)).tap do |container|
      container.parent = @owner
      container.has_member_relation = Array(options[:has_member_relation])
      container.is_member_of_relation = Array(options[:is_member_of_relation])
      container.inserted_content_relation = Array(options[:inserted_content_relation])
    end
  end
end