code: def get_instance_for_uuid(self, uuid, project_id):
          
          instance_name = self._inst_info_cache.get((uuid, project_id))
          if instance_name:
              return instance_name
          instances = self._get_instances_for_project(project_id)
          for inst in instances:
              if inst.id.replace('-', '') == uuid:
                  LOG.debug('get_instance_for_uuid: name=%s', inst.name)
                  instance_name = inst.name
                  self._inst_info_cache[(uuid, project_id)] = instance_name
                  return instance_name
          return instance_name
docs: Return instance name for given uuid of an instance and project.
  
          :uuid: Instance's UUID
          :project_id: UUID of project (tenant)