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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 get_dict_of_all_args(self):
 """Generates a dictionary from a handler paths query string and returns it :returns: Dictionary of all key/values in arguments list :rtype: dict """

        dictionary = {}
        for arg in [arg for arg in self.request.arguments if arg not in self.settings.get("reserved_query_string_params", [])]:
            val =  self.get_argument(arg, default=None)
            if val:
                dictionary[arg] = val
        return dictionary