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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 parse_params(self, params):
 """ Parsing params, params is a dict and the dict value can be a string or an iterable, namely a list, we need to process those iterables """

        for (key, value) in params.items():
            if not isinstance(value, str):
                string_params = self.to_string(value)
                params[key] = string_params
        return params