**Description** We want to support the new preferred Pipelines IR serialization format: YAML. **Reason** Without this change, [kubeflow/pipelines/pull/7431](https://github.com/kubeflow/pipelines/pull/7431) will be a breaking change for `aiplatform`.
Description
We want to support the new preferred Pipelines IR serialization format: YAML.
Reason
Without this change, kubeflow/pipelines/pull/7431 will be a breaking change for
aiplatform.