Dit betekent:

* De variabele `items_t` is een `tuple` met 3 items, een `int`, nog een `int`, en een `str`.
* De variabele `items_s` is een `set`, en elk van de items is van het type `bytes`.

#### Dict

Om een `dict` te definiëren, geef je 2 typeparameters door, gescheiden door komma's.

De eerste typeparameter is voor de sleutels (keys) van de `dict`.

De tweede typeparameter is voor de waarden  (values) van het `dict`:

  // +optional
  optional string holderIdentity = 1;

  // leaseDurationSeconds is a duration that candidates for a lease need
  // to wait to force acquire it. This is measure against time of last
  // observed renewTime.
  // +optional
  optional int32 leaseDurationSeconds = 2;

  // acquireTime is a time when the current lease was acquired.
  // +optional

   *
   * <p>If a task is submitted while a thread is executing tasks from the task queue, the thread
   * will not be released until that submitted task is also complete.
   *
   * <p>If a task is {@linkplain Thread#interrupt interrupted} while a task is running:
   *
   * <ol>
   *   <li>execution will not stop until the task queue is empty.

	"strings"

	xioutil "github.com/minio/minio/internal/ioutil"
	"github.com/minio/pkg/v3/console"
)

// metaCacheEntry is an object or a directory within an unknown bucket.
type metaCacheEntry struct {
	// name is the full name of the object including prefixes
	name string
	// Metadata. If none is present it is not an object but only a prefix.
	// Entries without metadata will only be present in non-recursive scans.
	metadata []byte

by a value of each type in <code>T</code>'s type set.
</p>

<pre>
x                   T           x is representable by a value of T because

'a'                 byte        97 is in the set of byte values
97                  rune        rune is an alias for int32, and 97 is in the set of 32-bit integers
"foo"               string      "foo" is in the set of string values

   *
   *  * 16 bytes: either `OkHttp cache v1\n` if the persisted file is complete. This is another
   *    sequence of bytes if the file is incomplete and should not be used.
   *  * 8 bytes: *n*: upstream data size
   *  * 8 bytes: *m*: metadata size
   *  * *n* bytes: upstream data
   *  * *m* bytes: metadata
   *

constraints.CreditCardNumber.message        = {item} is invalid credit card number.
constraints.EAN.message                     = {item} is invalid {type} barcode.
constraints.Email.message                   = {item} is not a well-formed email address.
constraints.Length.message                  = Length of {item} must be between {min} and {max}.
constraints.LuhnCheck.message               = The check digit for ${value} is invalid, Luhn Modulo 10 checksum failed.

constraints.CreditCardNumber.message        = {item} is invalid credit card number.
constraints.EAN.message                     = {item} is invalid {type} barcode.
constraints.Email.message                   = {item} is not a well-formed email address.
constraints.Length.message                  = Length of {item} must be between {min} and {max}.
constraints.LuhnCheck.message               = The check digit for ${value} is invalid, Luhn Modulo 10 checksum failed.

 *       is modified.
 *   <li><b>Null-hostility.</b> This collection will never contain a null element.
 *   <li><b>Deterministic iteration.</b> The iteration order is always well-defined, depending on
 *       how the collection was created. Typically this is insertion order unless an explicit
 *       ordering is otherwise specified (e.g. {@link ImmutableSortedSet#naturalOrder}). See the

     *
     * a) every iteration (except potentially the first) has guess >= floor(sqrt(x)). This is
     * because guess' is the arithmetic mean of guess and x / guess, sqrt(x) is the geometric mean,
     * and the arithmetic mean is always higher than the geometric mean.
     *
     * b) this iteration converges to floor(sqrt(x)). In fact, the number of correct digits doubles