    # File lib/fog/openstack/models/compute/metadata.rb, line 25
            def get(key)
              requires :parent
              data = service.get_meta(collection_name, @parent.id, key).body["meta"]
              metas = []
              data.each_pair {|k,v| metas << {"key" => k, "value" => v} }
              new(metas[0])
            rescue Fog::Compute::OpenStack::NotFound
              nil
            end