[Python] ECR's "tag immutability" property not available?

The Question

The constructor for aws_ecr on CDK python 1.14 seems to lack the ECR tag immutability flag:

"""Define an ECR repository."""
    def __init__(self, scope: aws_cdk.core.Construct, id: str, *, lifecycle_registry_id: typing.Optional[str]=None, lifecycle_rules: typing.Optional[typing.List["LifecycleRule"]]=None, removal_policy: typing.Optional[aws_cdk.core.RemovalPolicy]=None, repository_name: typing.Optional[str]=None) -> None:
        """
        :param scope: -
        :param id: -
        :param props: -
        :param lifecycle_registry_id: The AWS account ID associated with the registry that contains the repository. Default: The default registry is assumed.
        :param lifecycle_rules: Life cycle rules to apply to this registry. Default: No life cycle rules
        :param removal_policy: Determine what happens to the repository when the resource/stack is deleted. Default: RemovalPolicy.Retain
        :param repository_name: Name for this repository. Default: Automatically generated name.
        """

Environment

• CDK CLI Version: 1.14.0 (build 261a1bf)
• Module Version: aws-cdk.aws-ecr==1.14.0
• OS: OSX Catalina 10.15
• Language: Python

[nmussy]

Hey @brainstorm,

Unfortunately, the field is currently not implemented in CloudFormation.

An issue was opened on the roadmap, aws-cloudformation-coverage-roadmap#222. Feel free to add a +1 reaction to the issue to encourage the CloudFormation team to add it.

[ap00rv]

I am done implementing this feature and would like to send pull request today. cc @SomayaB