for _, rf := range r.References {
						var primaryKey, primaryKeySchema string
						if rf.PrimaryKey != nil {
							primaryKey, primaryKeySchema = rf.PrimaryKey.Name, rf.PrimaryKey.Schema.Name
						}
						refs = append(refs, fmt.Sprintf(
							"{PrimaryKey: %v PrimaryKeySchame: %v ForeignKey: %v ForeignKeySchema: %v PrimaryValue: %v OwnPrimaryKey: %v}",

			escapeStringJSON(b, k)
			b.WriteString(`":"`)
			escapeStringJSON(b, v)
			b.WriteString(`"}`)
		}
		return b.Bytes(), nil
	}

	sortedKeys := make([]string, 0, len(c))
	for k := range c {
		sortedKeys = append(sortedKeys, k)
	}
	sort.Strings(sortedKeys)

	b.WriteByte('{')
	for i, k := range sortedKeys {
		b.WriteByte('"')
		escapeStringJSON(b, k)
		b.WriteString(`":"`)
		escapeStringJSON(b, c[k])

	// Output: hello world
}

func ExampleBuffer_AvailableBuffer() {
	var buf bytes.Buffer
	for i := 0; i < 4; i++ {
		b := buf.AvailableBuffer()
		b = strconv.AppendInt(b, int64(i), 10)
		b = append(b, ' ')
		buf.Write(b)
	}
	os.Stdout.Write(buf.Bytes())
	// Output: 0 1 2 3
}

func ExampleBuffer_Cap() {
	buf1 := bytes.NewBuffer(make([]byte, 10))
	buf2 := bytes.NewBuffer(make([]byte, 0, 10))

          val mappedTo = range.mappedTo.utf8()
          val mappingIndex = mappingsBuffer.indexOf(mappedTo)
          if (mappingIndex == -1) {
            mappingOffset = mappingsBuffer.length
            mappingsBuffer.append(mappedTo)
          } else {
            mappingOffset = mappingIndex
          }

          // Write the range bytes.
          val b1 = mappedTo.length
          val b2 = (mappingOffset and 0x3f80) shr 7

_tf_api_dir = _os.path.dirname(_os.path.dirname(_API_MODULE.__file__))
_current_module = _sys.modules[__name__]

if not hasattr(_current_module, "__path__"):
  __path__ = [_tf_api_dir]
elif _tf_api_dir not in __path__:
  __path__.append(_tf_api_dir)

# Hook external TensorFlow modules.

# Load tensorflow-io-gcs-filesystem if enabled
if (_os.getenv("TF_USE_MODULAR_FILESYSTEM", "0") == "true" or
    _os.getenv("TF_USE_MODULAR_FILESYSTEM", "0") == "1"):

      }
      // if the length of the toString() result was > maxLength for some reason, truncate that
      seq = string;
    }

    return new StringBuilder(maxLength)
        .append(seq, 0, truncationLength)
        .append(truncationIndicator)
        .toString();
  }

  /**
   * Indicates whether the contents of the given character sequences {@code s1} and {@code s2} are

// ToS3ETag - return checksum to ETag
func ToS3ETag(etag string) string {
	etag = canonicalizeETag(etag)

	if !strings.HasSuffix(etag, "-1") {
		// Tools like s3cmd uses ETag as checksum of data to validate.
		// Append "-1" to indicate ETag is not a checksum.
		etag += "-1"
	}

	return etag
}

// GetDefaultConnSettings returns default HTTP connection settings.
func GetDefaultConnSettings() xhttp.ConnSettings {

		t.Fatalf("Count should be 3, but got count: %v err %v", count10, err)
	}

	var count11 int64
	sameUsers := make([]*User, 0)
	for i := 0; i < 3; i++ {
		sameUsers = append(sameUsers, GetUser("count-4", Config{}))
	}
	DB.Create(sameUsers)

	if err := DB.Model(&User{}).Where("name = ?", "count-4").Group("name").Count(&count11).Error; err != nil || count11 != 1 {

			APICode: "kms:InternalError",
			Err:     "failed to list KMS APIs",
			Cause:   err,
		}
	}

	list := make([]madmin.KMSAPI, 0, len(APIs))
	for _, api := range APIs {
		list = append(list, madmin.KMSAPI{
			Method:  api.Method,
			Path:    api.Path,
			MaxBody: api.MaxBody,
			Timeout: int64(api.Timeout.Truncate(time.Second).Seconds()),
		})
	}
	return list, nil
}

Here, the `shutdown` event handler function will write a text line `"Application shutdown"` to a file `log.txt`.

/// info

In the `open()` function, the `mode="a"` means "append", so, the line will be added after whatever is on that file, without overwriting the previous contents.

///

/// tip