Read more about it in the
    [FastAPI docs for Security](https://fastapi.tiangolo.com/tutorial/security/) and
    in the
    [FastAPI docs for OAuth2 scopes](https://fastapi.tiangolo.com/advanced/security/oauth2-scopes/).

    **Example**

    ```python
    from typing import Annotated

    from fastapi import Security, FastAPI

    from .db import User

      return false;
    }

    private void checkModCount() {
      if (modCount != expectedModCount) {
        throw new ConcurrentModificationException();
      }
    }

    /**
     * Advances nextCursor to the index of the first element after {@code c} that is not in {@code
     * skipMe} and returns {@code size()} if there is no such element.
     */
    private void nextNotInSkipMe(int c) {

⛔️ **Shell** form:

```Dockerfile
# ⛔️ Don't do this
CMD fastapi run app/main.py --port 80
```

Make sure to always use the **exec** form to ensure that FastAPI can shutdown gracefully and [lifespan events](../advanced/events.md){.internal-link target=_blank} are triggered.

   * uncommon to specify {@code concurrencyLevel(1)} in order to achieve more deterministic eviction
   * behavior.
   *
   * <p>Note that future implementations may abandon segment locking in favor of more advanced
   * concurrency controls.
   *
   * @return this {@code CacheBuilder} instance (for chaining)
   * @throws IllegalArgumentException if {@code concurrencyLevel} is nonpositive

labels.tooltip_search_view	=	Affichage de la recherche
labels.tooltip_run_crawler	=	Exécuter le robot
labels.tooltip_forum	=	Forum
labels.tooltip_onlinehelp	=	Aider
labels.tooltip_logout	=	Se déconnecter
labels.advance	=	Avance
labels.advance_search_title	=	Recherche Avancée
labels.advance_search_must_queries	=	Tous ces mots
labels.advance_search_phrase_query	=	Recherche d'expression de ces mots

    /** The key of the message: Logout */
    public static final String LABELS_tooltip_logout = "{labels.tooltip_logout}";

    /** The key of the message: Advance */
    public static final String LABELS_ADVANCE = "{labels.advance}";

    /** The key of the message: Advanced Search */
    public static final String LABELS_advance_search_title = "{labels.advance_search_title}";

    /** The key of the message: All these words */

    return ToOperation(iter->second);
  }
}

TF_Operation* TF_GraphNextOperation(TF_Graph* graph, size_t* pos) {
  if (*pos == 0) {
    // Advance past the first sentinel nodes in every graph (the source & sink).
    *pos += 2;
  } else {
    // Advance to the next node.
    *pos += 1;
  }

  mutex_lock l(graph->mu);
  while (*pos < static_cast<size_t>(graph->graph.num_node_ids())) {

	return paths
}

// string concat alternative to s1 + s2 with low overhead.
func concat(ss ...string) string {
	length := len(ss)
	if length == 0 {
		return ""
	}
	// create & allocate the memory in advance.
	n := 0
	for i := 0; i < length; i++ {
		n += len(ss[i])
	}
	b := make([]byte, 0, n)
	for i := 0; i < length; i++ {
		b = append(b, ss[i]...)
	}
	return unsafe.String(unsafe.SliceData(b), n)
}

    db_user = crud.get_user(db, user_id=user_id)
    ...
```

/// info

如果您需要异步连接到关系数据库，请参阅[Async SQL (Relational) Databases](https://fastapi.tiangolo.com/zh/advanced/async-sql-databases/)

///

/// note | "Very Technical Details"

如果您很好奇并且拥有深厚的技术知识，您可以在[Async](https://fastapi.tiangolo.com/zh/async/#very-technical-details)文档中查看有关如何处理 `async def`于`def`差别的技术细节。

///

	errorCount    int   // Number of errors.
	sawCode       bool  // saw code in this file (as opposed to comments and blank lines)
	pc            int64 // virtual PC; count of Progs; doesn't advance for GLOBL or DATA.
	input         []lex.Token
	inputPos      int
	pendingLabels []string // Labels to attach to next instruction.
	labels        map[string]*obj.Prog
	toPatch       []Patch
	addr          []obj.Addr