/// <summary>
 /// 注册类型的分区策略
 /// </summary>
 /// <param name="entityType"></param>
 /// <param name="shardStragegyType"></param>
 /// <param name="attributes"></param>
 public IShardStrategy RegisterShardStragety(Type entityType, Type shardStragegyType, IDictionary <string, string> attributes = null)
 {
     return(shardConfig.RegisterShardStragety(entityType, shardStragegyType, attributes));
 }