// If parameter is Class<? extends Foo>, we return Foo.class
      @SuppressWarnings("unchecked")
      T defaultClass = (T) getFirstTypeParameter(type.getType()).getRawType();
      return defaultClass;
    }
    if (type.getRawType() == TypeToken.class) {
      // If parameter is TypeToken<? extends Foo>, we return TypeToken<Foo>.
      @SuppressWarnings("unchecked")

hello world dir/bar foo readonly important...

        }

    }

    /**
     * @param <T>
     */
    public static class Foo<T> {

        /** */
        public List<T> list;

    }

    /** */
    public static class Bar extends Foo<String> {
    }

//	{
//		outcode($1, $2, &nullgen, 0, &nullgen);
//	}
	BEQ	2(PC)
	RET

// More B/BL cases, and canonical names JMP, CALL.

	BEQ	2(PC)
	B	foo(SB) // JMP foo(SB)
	BL	foo(SB) // CALL foo(SB)
	BEQ	2(PC)
	JMP	foo(SB)
	CALL	foo(SB)

// CMPF and CMPD are special.
	CMPF F1, F2
	CMPD F1, F2

// AND
	AND	$255, R0, R1         // ff1000e2
	AND	$4278190080, R0, R1  // ff1400e2

Yfoo test2/foo fewafewa fewa feawfehahaha hahaafwe hahafawe hahawafe a fwefewa test2/sparse...

    assertUnescaped(e, '@');

    // Don't use plus for spaces
    assertEscaping(e, "%20", ' ');

    assertEquals("safe%20with%20spaces", e.escape("safe with spaces"));
    assertEquals("foo@bar.com", e.escape("foo@bar.com"));
  }

  private UrlEscaperTesting() {}

{* ../../docs_src/header_params/tutorial003_an_py310.py hl[9] *}

Si te comunicas con esa *path operation* enviando dos headers HTTP como:

```
X-Token: foo
X-Token: bar
```

El response sería como:

```JSON
{
    "X-Token values": [
        "bar",
        "foo"
    ]
}
```

## Recapitulación

Declara headers con `Header`, usando el mismo patrón común que `Query`, `Path` y `Cookie`.

```JSON
{
    "name": "Foo",
    "description": "An optional description",
    "price": 45.2,
    "tax": 3.5
}
```

...dado que `description` y `tax` son opcionales (con un valor por defecto de `None`), este “`object`” JSON también sería válido:

```JSON
{
    "name": "Foo",
    "price": 45.2
}
```

## Decláralo como un parámetro

    builder.put("foo", 2);
    assertMapEquals(builder.buildOrThrow(), "foo", 2);
  }

  public void testBuilderPutImmutableEntryWithNullKeyFailsAtomically() {
    Builder<String, Integer> builder = new Builder<>();
    assertThrows(NullPointerException.class, () -> builder.put(immutableEntry((String) null, 1)));
    builder.put("foo", 2);
    assertMapEquals(builder.buildOrThrow(), "foo", 2);

            return true; // BAD!!
          }

          @Override
          public String get() {
            return "foo"; // BAD!!
          }

          @Override
          public String get(long time, TimeUnit unit) {
            return "foo"; // BAD!!
          }

          @Override
          public void addListener(Runnable runnable, Executor executor) {