* add_baostock_collector
* modify_comments
* fix_pylint_error
* solve_duplication_methods
* modified the logic of update_data_to_bin
* modified the logic of update_data_to_bin
* optimize code
* optimize pylint issue
* fix pylint error
* changes suggested by the review
* fix CI faild
* fix CI faild
* fix issue 1121
* format with black
* optimize code logic
* optimize code logic
* fix error code
* drop warning during code runs
* optimize code
* format with black
* fix bug
* format with black
* optimize code
* optimize code
* add comments
* Fix high-freq data name from `yahoo_cn_1min` to `cn_data_1min`
* re-format example data names using `qlib_{region}_{feq}`, e.g. qlib_cn_1d
* re-format example data names using `{region}_{feq}`, e.g. us_1d and cn_1min
* keep using for 1day data, and change 1min data to