code: public String update_child_account(Object data) {
          Gson gson = new Gson();
          String json = gson.toJson(data);
          return put("account", json);
      }
docs: /*
  Update Child Account.
  @param {Object} data contains json objects as a key value pair from HashMap.
  @options data {String} auth_key: 16 character authorization key of Reseller child to be modified [Mandatory]
  @options data {String} company_org: Name of Reseller child’s company [Optional]
  @options data {String} first_name: First name of Reseller child [Optional]
  @options data {String} last_name: Last name of Reseller child [Optional]
  @options data {String} password: Password of Reseller child to login [Optional]
  @options data {Array} associate_ip: Associate dedicated IPs to reseller child. You can use commas to separate multiple IPs [Optional]
  @options data {Array} disassociate_ip: Disassociate dedicated IPs from reseller child. You can use commas to separate multiple IPs [Optional]