@staticmethod
def balance(data, *args, **kwargs):
    """
        Returns dict of available balances, with currency names as keys - this ignores
        any amount already involved in a trade (i.e. margin)
        ex.:
            {'BTC': '12.04', 'LTC': '444.12'}
        :param data: requests.response() obj
        :param args:
        :param kwargs:
        :return: dict
        """
    return data
