# Type of request: This is a ...

bug report

# Detailed description

aws cloudformation list-stack-resources --stack-name "mystack" 
{
    "StackResourceSummaries": [
        {
            "LogicalResourceId": "MyS3Bucket",
            "PhysicalResourceId": "mystack",
            "ResourceType": "AWS::S3::Bucket",
            "ResourceStatus": "CREATE_COMPLETE"
        }
    ]
}

**LastUpdatedTimestamp** is not returned.
...

## Expected behavior

Trying to use Localstack with some dependencies which expects the field LastUpdatedTimestamp. I saw in few older posts the field was being returned.



self.stacks = {}
    @property
    def exports(self):
        exports = []
        output_keys = {}
        for stack_id, stack in self.stacks.items():
            for output in stack.outputs:
                export_name = output.get('ExportName')
                if not export_name:
                    continue
                if export_name in output_keys:
                    
                    LOG.warning('Found duplicate export name %s in stacks: %s %s' % (
                        export_name, output_keys[export_name], stack.stack_id))
                entry = {
                    'ExportingStackId': stack.stack_id,
                    'Name': export_name,
                    'Value': output['OutputValue']
                }
                exports.append(entry)
                output_keys[export_name] = stack.stack_id
        return exports
class Stack(object):
    def __init__(self, metadata=None, template={}):
        self.metadata = metadata or {}
        self.template = template or {}
        self._template_raw = clone_safe(self.template)
        self.template_original = clone_safe(self.template)