/** Constructor for the header node. */
    AvlNode() {
      this.elem = null;
      this.elemCount = 1;
    }

    // For discussion of pred() and succ(), see the comment on the pred and succ fields.

    private AvlNode<E> pred() {
      return requireNonNull(pred);
    }

    private AvlNode<E> succ() {
      return requireNonNull(succ);
    }

 *
 * <ul>
 *   <li><a href="http://www.ietf.org/rfc/rfc2109.txt">RFC 2109</a>
 *   <li><a href="http://www.ietf.org/rfc/rfc2183.txt">RFC 2183</a>
 *   <li><a href="http://www.ietf.org/rfc/rfc2616.txt">RFC 2616</a>
 *   <li><a href="http://www.ietf.org/rfc/rfc2965.txt">RFC 2965</a>
 *   <li><a href="http://www.ietf.org/rfc/rfc5988.txt">RFC 5988</a>
 * </ul>
 *

---

---

// Helper function for implementing {EXPECT|ASSERT}_PRED1.  Don't use
// this in your code.
template <typename Pred,
          typename T1>
AssertionResult AssertPred1Helper(const char* pred_text,
                                  const char* e1,
                                  Pred pred,
                                  const T1& v1) {
  if (pred(v1)) return AssertionSuccess();

  return AssertionFailure() << pred_text << "("

 *
 * <ul>
 *   <li><a href="http://www.ietf.org/rfc/rfc2109.txt">RFC 2109</a>
 *   <li><a href="http://www.ietf.org/rfc/rfc2183.txt">RFC 2183</a>
 *   <li><a href="http://www.ietf.org/rfc/rfc2616.txt">RFC 2616</a>
 *   <li><a href="http://www.ietf.org/rfc/rfc2965.txt">RFC 2965</a>
 *   <li><a href="http://www.ietf.org/rfc/rfc5988.txt">RFC 5988</a>
 * </ul>
 *

<div style="text-align: right; margin-right: 10%;">🇱🇨 🇸🇲 - ✡ Honnibal - <strong><a href="https://explosion.ai" target="_blank">💥 👲</a> 🕴 - <a href="https://spacy.io" target="_blank">🌈</a> 👼</strong> <a href="https://twitter.com/_inesmontani/status/1144173225322143744" target="_blank"><small>(🇦🇪)</small></a> - <a href="https://twitter.com/honnibal/status/1144031421859655680" target="_blank"><small>(🇦🇪)</small></a></div>

---

---

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## **Typer**, ה - FastAPI של ממשקי שורת פקודה (CLI).

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## **Typer**, FastAPI의 CLI