def sub_account_spot_summary(self, **kwargs):
    """Query Sub-account Spot Assets Summary (For Master Account)

    GET /sapi/v1/sub-account/spotSummary

    https://binance-docs.github.io/apidocs/spot/en/#query-sub-account-assets-for-master-account

    Keyword Args:
        email (str, optional): Sub account email
        page (int, optional): Default: 1
        size (int, optional): Default 10, max 20
        recvWindow (int, optional): The value cannot be greater than 60000
    """

    return self.sign_request("GET", "/sapi/v1/sub-account/spotSummary", kwargs)