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**Features and Improvements**
- allow user to specify the default value of the parameter.
- add ``ignore_mapper_error`` and ``skip_mapper_prompt`` arguments to ``Maker.new(..)``.
- add ``cleanup_output_dir`` argument to ``Maker.templaterize(...)``.
**Miscellaneous**
- add test on Python3.7, 3.8, 3.9, 3.10