Merge pull request !22686 from Isaac/Dither

Merge pull request !22553 from 杨旭华/UDPOSDataset

Merge pull request !27060 from zhoufeng/modify-env-name

Merge pull request !27732 from Margaret_wangrui/operator

Merge pull request !27568 from chengang/add_tcp_comm

Merge pull request !27694 from kingxian/master

Signed-off-by: zhoufeng <zhoufeng54@huawei.com>

Merge pull request !27461 from YuJianfeng/shard

Merge pull request !22297 from 杨旭华/IWSLTDataset

Merge pull request !22222 from 杨旭华/PennTreebankDataset

Merge pull request !27495 from 徐永飞/master

Merge pull request !27435 from wtcheng/master

1. `TensorType` and `TensorTypePtr`;
2. `utils::isa<TensorTypePtr>()`;
3. `utils::isa<int64_t>()`, `utils::cast<int64_t>()`;
4. `GetValue<ValuePtrList>(value)`.

Merge pull request !20043 from 杨旭华/YelpReview

Merge pull request !27237 from lilei/modify_virtualdataset_for_master

Merge pull request !26456 from YJfuel123/Spectrogram

Merge pull request !22552 from 王睿/stl10_dataset

Merge pull request !27066 from kisnwang/enable-set-swap-node

Merge pull request !27224 from Margaret_wangrui/operator

2. fix:delay memory allocat in NewTensorFilledWithData

Merge pull request !21823 from 张渝/CharNGram

Merge pull request !27259 from hewei/core_api

Remove improper assert line: `ASSERT_TRUE(p < q);`

Merge pull request !27242 from zyli2020/ps_cache_feature

Merge pull request !27192 from lianliguang/xbg