* Added mock for sagemaker describe-pipeline call
* Added NotImplementedError for PipelineDefinitionS3Location
* Added support for PipelineDefinitionS3Location
* Extended unit tests
* Moved arn_formatter into utils
* Import arn_formatter in test_sagemaker_pipeline
* Adding uniqueness check for PipelineName
* Removed unused import
* Swapped client for s3_backend
* Corrected kwarg names
* From direct s3_backend to mocked boto call due to strange error
* Changed to using s3_backends from mocked boto3 call
* Remove unused argument
* Black formatting
* Delete object and bucket to avoid duplicate bucket names error
* Try to fix bucket collisions
* Remove unused lines
* Switched to mock
* SkipTest in server mode
* Switched to handling inside to-be tested method
* added s3 mock
* mock s3
* Change mocking s3
* Removed unnecessary tests
* Switch to only s3_backend
* Adding skiptest to load from s3
