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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_all_tags(self, filters=None):
 """ Retrieve all the metadata tags associated with your account. :type filters: dict :param filters: Optional filters that can be used to limit the results returned. Filters are provided in the form of a dictionary consisting of filter names as the key and filter values as the value. The set of allowable filter names/values is dependent on the request being performed. Check the EC2 API guide for details. :rtype: dict :return: A dictionary containing metadata tags """

        params = {}
        if filters:
            self.build_filter_params(params, filters)
        return self.get_list('DescribeTags', params,
                             [('item', Tag)], verb='POST')