And you have to wait 🕙 in the line for a long time or you lose your turn.

You probably wouldn't want to take your crush 😍 with you to run errands at the bank 🏦.

### Burger Conclusion { #burger-conclusion }

In this scenario of "fast food burgers with your crush", as there is a lot of waiting 🕙, it makes a lot more sense to have a concurrent system ⏸🔀⏯.

This is the case for most of the web applications.

 *   <li>Convert between specific preset values using {@link
 *       com.google.common.collect.Maps#asConverter Maps.asConverter}. For example, use this to
 *       create a "fake" converter for a unit test. It is unnecessary (and confusing) to <i>mock</i>
 *       the {@code Converter} type using a mocking framework.
 *   <li>Pass two lambda expressions or method references to the {@link #from from} factory method.

      // timed out. e.g. if we weren't event able to grab the lock within the timeout we would never
      // even check the guard. I don't think we care too much about this use case but it could lead
      // to a confusing error message.
      throw new TimeoutException("Timed out waiting for " + this + " to reach the RUNNING state.");
    }
  }

  @Override
  public final void awaitTerminated() {

Y tienes que esperar 🕙 en la fila por mucho tiempo o pierdes tu turno.

Probablemente no querrías llevar a tu crush 😍 contigo a hacer trámites en el banco 🏦.

### Conclusión de las Hamburguesas { #burger-conclusion }

En este escenario de "hamburguesas de comida rápida con tu crush", como hay mucha espera 🕙, tiene mucho más sentido tener un sistema concurrente ⏸🔀⏯.

/// tip | Dica

Você pode se lembrar que corpos de requisição também são declarados com modelos Pydantic.

Aqui, o **FastAPI** não ficará confuso porque você está usando `Depends`.

///

/// check | Verifique

A forma como esse sistema de dependências foi projetado nos permite ter diferentes dependências (diferentes "dependables") que retornam um modelo `User`.

      // timed out. e.g. if we weren't event able to grab the lock within the timeout we would never
      // even check the guard. I don't think we care too much about this use case but it could lead
      // to a confusing error message.
      throw new TimeoutException("Timed out waiting for " + this + " to reach the RUNNING state.");
    }
  }

  @Override
  public final void awaitTerminated() {

  protected B self() {
    return (B) this;
  }

  // Test Data

  private @Nullable G subjectGenerator;
  // Gets run before every test.
  private Runnable setUp;
  // Gets run at the conclusion of every test.
  private Runnable tearDown;

  @CanIgnoreReturnValue
  protected B usingGenerator(G subjectGenerator) {
    this.subjectGenerator = subjectGenerator;
    return self();
  }

```console
$ C:\opt\custompython\bin\python
```

</div>

////

Эта информация будет полезна при изучении [Виртуальных окружений](virtual-environments.md){.internal-link target=_blank}.

## Вывод { #conclusion }

Благодаря этому вы должны иметь базовое представление о том, что такое **переменные окружения** и как использовать их в Python.

    if (localInputFuture != null) {
      String message = "inputFuture=[" + localInputFuture + "]";
      if (localTimer != null) {
        long delay = localTimer.getDelay(MILLISECONDS);
        // Negative delays look confusing in an error message
        if (delay > 0) {
          message += ", remaining delay=[" + delay + " ms]";
        }
      }
      return message;
    }
    return null;
  }

  @Override

The same example would then look like:

{* ../../docs_src/dependencies/tutorial004_an_py310.py hl[19] *}

...and **FastAPI** will know what to do.

/// tip

If that seems more confusing than helpful, disregard it, you don't *need* it.

It is just a shortcut. Because **FastAPI** cares about helping you minimize code repetition.