Feature Request: Cannot pass output path and ECR Image ARN from Execution Input

While creating the Sagemaker training step I have fix the output path location and ECR Image for all the executions. Is there a way we can pass the model output path from the execution input?

Start by reviewing the SageMaker training step API and how execution input is handled in this SDK; the issue names no files, tests, or entry points. Define how both the model output path and ECR image ARN should be supplied per execution, then add coverage showing those values are accepted and used.

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