# File lib/fog/rackspace/models/compute_v2/metadata.rb, line 23
        def get(key)
          requires :parent
          data = connection.get_metadata_item(collection_name, parent.id, key).body["meta"]          
          datum = data.first
          new(:key => datum[0], :value => datum[1])
        rescue Fog::Compute::RackspaceV2::NotFound
          nil
        end