:return: Returns boolean value to indicate if 128bit trace_id
        generation is enabled

def generate_128bit_trace_id(self):
        """
        :return: Returns boolean value to indicate if 128bit trace_id
        generation is enabled
        """
        if 'generate_128bit_trace_id' in self.config:
            return get_boolean(self.config['generate_128bit_trace_id'], False)
        return os.getenv('JAEGER_TRACEID_128BIT') == 'true'