///

## Criar o hash e verificar as senhas { #hash-and-verify-the-passwords }

Importe as ferramentas que nós precisamos de `pwdlib`.

Crie uma instância de PasswordHash com as configurações recomendadas – ela será usada para criar o hash e verificar as senhas.

/// tip | Dica

Em contraste com a "**imagem de contêiner**" que contém os conteúdos estáticos armazenados, um "**contêiner**" normalmente se refere à instância rodando, a coisa que está sendo **executada**.

Você pode criar as *operações de rotas* para esse módulo usando o `APIRouter`.

### Importe `APIRouter` { #import-apirouter }

você o importa e cria uma "instância" da mesma maneira que faria com a classe `FastAPI`:

{* ../../docs_src/bigger_applications/app_an_py39/routers/users.py hl[1,3] title["app/routers/users.py"] *}

        // Test getInstance when no instance has been set
        // Should default to System.err
        LogStream instance = LogStream.getInstance();
        assertNotNull(instance);

        // Getting instance again should return the same instance
        LogStream instance2 = LogStream.getInstance();
        assertSame(instance, instance2);
    }

    @Test
    void testSetInstanceAndGetInstance() {

        SmbShareInfo instance3 = new SmbShareInfo("SHARE2", 0, "remark1");
        Object notAShareInfo = new Object();

        assertTrue(instance1.equals(instance2)); // Should be equal based on netName
        assertFalse(instance1.equals(instance3)); // Should not be equal
        assertFalse(instance1.equals(notAShareInfo)); // Should not be equal to other types

        assertEquals("instance2", transformer2.getName());
        assertEquals("instance3", transformer3.getName());

        // Change one instance's name
        transformer2.setName("changed2");

        // Others should remain unchanged
        assertEquals("instance1", transformer1.getName());
        assertEquals("changed2", transformer2.getName());

        // Then
        assertNotSame(instance1, instance2);
        assertEquals(instance1.getCommand(), instance2.getCommand());
        assertNotEquals(instance1.toString(), instance2.toString()); // Different object references in toString
    }

    /**
     * Test thread safety of read/write operations
     */
    @Test
    @DisplayName("Test thread safety of operations")

   *       is used to construct the sample instances. In case of tie, the candidate constructors or
   *       factories are tried one after another until one can be used to construct sample
   *       instances.
   *   <li>For the constructor or static factory method used to construct instances, it's checked
   *       that when equal parameters are passed, the result instance should also be equal; and vice
   *       versa.

  <version>0.0.0.0</version>
</parent>
    ]]></configuration>
    <description> This is the MavenProject instance for the parent of the current POM.
    </description>
  </expression>
  <expression>
    <syntax>project.file</syntax>
    <description> This is the File instance that refers to the location of the current POM on
      disk.
    </description>
  </expression>
  <expression>

    }
  }

  /** Returns a fresh {@link InternerBuilder} instance. */
  public static InternerBuilder newBuilder() {
    return new InternerBuilder();
  }

  /**
   * Returns a new thread-safe interner which retains a strong reference to each instance it has
   * interned, thus preventing these instances from being garbage-collected. If this retention is