EstimatorBase._json_encode_hyperparameters(hyperparams) breaks sagemaker_training.py

[osdf]

Describe the bug

https://github.com/aws/sagemaker-training-toolkit/blob/master/src/sagemaker_training/logging_config.py#L29 needs an integer for level.
Through https://github.com/aws/sagemaker-python-sdk/blob/dev/src/sagemaker/estimator.py#L685 the value in hyperparams[CONTAINER_LOG_LEVEL_PARAM_NAME] (which is logging.INFO, the integer value 20) gets converted to a string ('20'), and hence https://github.com/aws/sagemaker-training-toolkit/blob/master/src/sagemaker_training/logging_config.py#L37 breaks.

Similarly (if one fixes the '20' issue by hand),
https://github.com/aws/sagemaker-training-toolkit/blob/master/src/sagemaker_training/files.py#L136 won't identify that code needs to be downloaded from s3, because the entry for https://github.com/aws/sagemaker-python-sdk/blob/dev/src/sagemaker/model.py#L65 is wrapped into a string, having the form "'s3://....'".

To reproduce
Run with script-mode, using newest sagemaker python sdk (2.76.0)

Expected behavior
It works.

System information
A description of your system. Please provide:

• SageMaker Python SDK version: 2.76.0
• Framework name: None
• Framework version: None
• Python version: 3.8
• CPU or GPU: CPU and GPU
• Custom Docker image (Y/N): Yes.

Additional context
Add any other context about the problem here.

[navinsoni]

Fixed by #3043