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

ci

add test case

address some of the review cmts

address review cmts

fix to support schema=nullptr

change references to use path original

revert folder name

revert graphengine

& null sampler, add check for duplicate column name

Added linter fix for album dataset

Added testDataset

Adding signature

Added JsonDataset example API

Example dataset

Resolving format

More fixing

Refactor

Small fix

Added compiling album dataset

Running tests

Added linter fix #1

Passing UT

Added dataset API

Addressing clang

Clang part 2

Fixing pass

Fixed tree check

lint fix

Added lint fix part 2

updated c color op descriptions

fix review cmts

fix ci

fix Ci

fixci

address ci

ci

- add timeout
- add more test cases

fix CI

address review cmts

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

try to display image

remove headers

fix iterator file

fix pr comments

fix new file