# File lib/fog/rackspace/requests/compute_v2/update_metadata.rb, line 16
        def update_metadata(collection, obj_id, metadata = {})
          raise Fog::Compute::RackspaceV2::NotFound if obj_id == 0
          
          response = Excon::Response.new
          response.status = 202
          response.body = {"metadata" => {"environment" => "dev", "tag" => "database"}}
          response            
        end