def METHOD_NAME(self, stack_name: str, updated_template: str, params: list):
    """Update CFN stack."""
    return self._client.METHOD_NAME(
        StackName=stack_name,
        TemplateBody=json.dumps(updated_template, indent=2),  # Indent so it looks nice in the console
        Parameters=params,
        Capabilities=["CAPABILITY_IAM", "CAPABILITY_NAMED_IAM"],
    )