* @return new referral, combining a chain of referrals
     */
    DfsReferralDataInternal combine(DfsReferralData next);

    /**
     * Append another referral to this referral chain
     *
     * @param dr the referral to append
     */
    void append(DfsReferralDataInternal dr);

    protected static String wrapQuery(final String query) {
        final StringBuilder sb = new StringBuilder();
        if (!query.startsWith("*")) {
            sb.append("*");
        }
        sb.append(query);
        if (!query.endsWith("*")) {
            sb.append("*");
        }
        return sb.toString();
    }

			// delete this version leading to a free version
			xl.DeleteVersion(fi)
			freeVersionIDs = append(freeVersionIDs, fi.TierFreeVersionID())
			allVersionIDs = append(allVersionIDs, fi.TierFreeVersionID())
		} else {
			versions = append(versions, fi)
			allVersionIDs = append(allVersionIDs, fi.VersionID)
		}
	}
	buf, err := xl.AppendTo(nil)
	if err != nil {

			tagMap := tag.ToMap()
			keys := make([]string, 0, len(tagMap))
			for k, v := range tagMap {
				args[pathJoin("ExistingObjectTag", k)] = []string{v}
				args[pathJoin("RequestObjectTag", k)] = []string{v}
				keys = append(keys, k)
			}
			args["RequestObjectTagKeys"] = keys
		}
	}

	for _, objLock := range []string{
		xhttp.AmzObjectLockMode,
		xhttp.AmzObjectLockLegalHold,
		xhttp.AmzObjectLockRetainUntilDate,

            }
            return new Pair<>(k, v);
        }).forEach(e -> {
            if (buf.length() > 0) {
                buf.append('\n');
            }
            buf.append(e.getFirst());
            buf.append('=');
            buf.append(e.getSecond());
        });
        return buf.toString();
    }

    /**
     * Loads configuration parameters into a map.
     *

	var tokens []Token
	for _, tok := range macro.tokens {
		if tok.ScanToken != scanner.Ident {
			tokens = append(tokens, tok)
			continue
		}
		substitution := actuals[tok.text]
		if substitution == nil {
			tokens = append(tokens, tok)
			continue
		}
		tokens = append(tokens, substitution...)
	}
	in.Push(NewSlice(in.Base(), in.Line(), tokens))
}

   * control how the file is opened for writing. When no mode is provided, the file will be
   * truncated before writing. When the {@link FileWriteMode#APPEND APPEND} mode is provided, writes
   * will append to the end of the file without truncating it.
   *
   * @since 14.0
   */
  public static ByteSink asByteSink(File file, FileWriteMode... modes) {
    return new FileByteSink(file, modes);

	}); err != nil {
		t.Fatalf("append map: %v", err)
	}
	AssertAssociationCount(t, user, "Languages", 1, "after append 1 map (generic file)")

	// Append more maps individually
	if err := DB.Model(&user).Association("Languages").Append(map[string]interface{}{"code": "gm2m_map_2", "name": "GMap2"}); err != nil {
		t.Fatalf("append map 2: %v", err)
	}

        buf.append("propertyName=")
                .append(propertyName)
                .append(",propertyType=")
                .append(propertyType.getName())
                .append(",readMethod=")
                .append(readMethod != null ? readMethod.getName() : "null")
                .append(",writeMethod=")
                .append(writeMethod != null ? writeMethod.getName() : "null");

  private fun cookieHeader(cookies: List<Cookie>): String =
    buildString {
      cookies.forEachIndexed { index, cookie ->
        if (index > 0) append("; ")
        append(cookie.name).append('=').append(cookie.value)
      }
    }