Merge pull request !6905 from lixiachen/CacheOp_dev

Merge pull request !5300 from nhussain/slice_op

Merge pull request !6017 from ZiruiWu/per_batch_map_multi_col

add string implementation, can handle partial string slices

finish core implementation, added Index object

fix up the logic

add in new SliceOption object, cleaning up tests

decided to use project after batch as well

per_batch_map 1->x colunm works

add more test case

add test cases, project after map

col order hahaah

fix ci

add test cases

addr review cmts

ci

fix build err

fix test case failure

ci

fix CI

ci fix 1

fix ci 2

fix ci 3

fix ci 4

fix ci 5

fix ci 6

fix ci 7

change var name in CelebA from dataset_type to usage

address review cmts

fix cpp ut fail

change mode to usage in VOCDataset

fix cmts

fix ci test case fail

Merge pull request !5384 from nhussain/api_changes

ci

add test case

address some of the review cmts

address review cmts

change ImagefolderDV2 name

change ds.transforms.vision to ds.vision

change batch api to match map api more closely

compose op changes

test_pylint

remove compose op from vision, move to transform module, refactor map and batch to use column_order

Merge pull request !5648 from MahdiRahmaniHanzaki/get-col-name

Merge pull request !5085 from lixiachen/cache_hostname

Turn --stop into sync

Ignore the rc of shutdown

fix review cmts

fix ci

fix Ci

fixci

address ci

ci

- add timeout
- add more test cases

fix CI

address review cmts

Merge pull request !4314 from nhussain/clean_up_bindings

implment pause in MapOp, added more to callback

add ds_callback

- Initial drop of Python DSCallback

- Pybind DSCallback

- Pybind DSCallback

added callback to mapOp

- de_pipeline DSCallback

- de_pipeline DSCallback

add test case, segfault for now

fix seg fault

- de_pipeline DSCallback

remove 1 line

update callback test case, now works

use builder class for mapOp callback

- de_pipeline DSCallback

- de_pipeline DSCallback

- de_pipeline DSCallback

better test case

minor fix

add comments and minor clean ups

get rid of nullptr in MapOp, use other flag instead

fix a bug ParseMapOp only takes 1 callback

- Added WaitedDSCalabck

refactor callback param

fix text case incorrect number

- added testing

fix cpp test case

- added testing

- revert back lenet changes

- cleanup test_callbacks.py

- cleanup test_callbacks.py

fix CI stage I

fix CI stage II

fix CI and update epoch counter

- add validation
- add more testing  test_callbacks.py

use random data op to do tests

adjust when to call EpochBegin/End

- add repeat with callback

- addressing reviewers' comments

- docstring and CI fixes

- docstring and CI fixes

- docstring and CI fixes

- rebase with upstream/master

fix cpp test case

fix review comments

addr review cmts, add test case

Merge pull request !4498 from heleiwang/gnn_distributed

try to display image

Merge pull request !4367 from MahdiRahmaniHanzaki/cutmix

Merge pull request !4220 from liyong126/minddataset_pk_num_samples