    # File lib/fog/openstack/models/identity/tenants.rb, line 14
            def find_by_id(id)
              cached_tenant = self.find {|tenant| tenant.id == id}
              return cached_tenant if cached_tenant
              tenant_hash = service.get_tenant(id).body['tenant']
              Fog::Identity::OpenStack::Tenant.new(
                tenant_hash.merge(:service => service))
            end