code: public String delete_child_account(Map<String, String> data) {
          String child_authkey = data.get("auth_key");
          return delete("account/" + child_authkey, EMPTY_STRING);
      }
docs: /*
  Delete 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 deleted [Mandatory]