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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 preprocess_model(model, rewrap=True, **kwargs):
 """Preprocess a MiniZinc model. This function takes care of preprocessing the model by resolving the template using the arguments passed as keyword arguments to this function. Optionally, this function can also "rewrap" the model, deleting spaces at the beginning of the lines while preserving indentation. Parameters model : str The minizinc model (i.e. the content of a ``.mzn`` file). rewrap : bool Whether to "rewrap" the model, i.e. to delete leading spaces, while preserving indentation. Default is ``True``. **kwargs Additional arguments to pass to the template engine. Returns ------- str The preprocessed model. """


    args = {**kwargs, **config.get('args', {})}
    model = _process_template(model, **args)

    if rewrap:
        model = rewrap_model(model)

    return model