* [Feature]: Add checkpoint hook

* [Fix]: Fix lint

* [Fix]: Delete redundant optional and give an example to our_dir

* [Feature]: Add test the last_ckpt in UT

* [Fix]: Fix docstring problem

* [Fix]: Add patch to UT

* [Feature]: Add Test case for by epoch

* [Feature]: Add Part3 of Hooks

* [Feature]: Add Hook

* [Fix]: Add docstring and type hint for base hook

* [Fix]: Add test case to not the last iter, inner_iter, epoch

* [Fix]: Add missing type hint

* [Feature]: Add Args and Returns in docstring

* [Fix]: Add missing colon

* [Fix]: Add optional to docstring

* [Fix]: Fix docstring problem

* [Fix]: Fix lint

* fix lint

* update typing and docs

* fix lint

* Update mmengine/hooks/empty_cache_hook.py

Co-authored-by: Zaida Zhou <58739961+zhouzaida@users.noreply.github.com>

* Update mmengine/hooks/empty_cache_hook.py

Co-authored-by: Zaida Zhou <58739961+zhouzaida@users.noreply.github.com>

* Update mmengine/hooks/empty_cache_hook.py

Co-authored-by: Zaida Zhou <58739961+zhouzaida@users.noreply.github.com>

* Update tests/test_hook/test_empty_cache_hook.py

Co-authored-by: Zaida Zhou <58739961+zhouzaida@users.noreply.github.com>

* fix lint

* fix comments

* remove test condition

Co-authored-by: seuyou <3463423099@qq.com>
Co-authored-by: Zaida Zhou <58739961+zhouzaida@users.noreply.github.com>

* [Feature]: Add optimizer hook

* [Fix]: Update docstring

* [Fix]: Add call with in UT

* [Feature]: Add param scheduler hook

* [Fix]: update docstring and add assert_call to UT

* [Feature]: Add sampler seed hook

* [Fix]: Add call with to UT

* [Feature]: Add Part3 of Hooks

* [Feature]: Add Hook

* add iter timer hook

* update test

* [Fix]: Add docstring and type hint for base hook

* fix mypy

* improve doc coverage and merge main

Co-authored-by: seuyou <3463423099@qq.com>

* [Feature]: Add Part3 of Hooks

* [Feature]: Add Hook

* [Fix]: Add docstring and type hint for base hook

* [Fix]: Add test case to not the last iter, inner_iter, epoch

* [Fix]: Add missing type hint

* [Feature]: Add Args and Returns in docstring

* [Fix]: Add missing colon

* [Fix]: Add optional to docstring

* [Fix]: Fix docstring problem

* [Fix]:typo

* [Fix]: Fix lint

Co-authored-by: Your <you@example.com>

* add config test

* Fix typo

Co-authored-by: Zaida Zhou <58739961+zhouzaida@users.noreply.github.com>

* Update tests/config/test_config.py

Co-authored-by: Zaida Zhou <58739961+zhouzaida@users.noreply.github.com>

* Reconstruct config test

* Fix import logic and error test

* Fix path error

* Restructuring Config

* simplify test logic

simplify test logic

* rename test_config file

* add test complex dump and pretty text

* adjust test sequence according to comment

adjust test sequence according to comment

* add comment and test for simple.config.py

* add config test data

* add init

* remove __pycache__

* fix as comment

* add syntax test case

* remove tmp path and modify comment

* add test for setattr

Co-authored-by: Zaida Zhou <58739961+zhouzaida@users.noreply.github.com>