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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def _model_to_dict(model, ignore):
 """ Convert OSS model to dict. Args: model (oss2.models.RequestResult):
 Model. ignore (tuple of str):
 Keys to not insert to dict. Returns: dict: Model dict version. """

        return {attr: value for attr, value in model.__dict__.items()
                if not attr.startswith('_') and attr not in ignore}