// allowedFormats determines which formats can be used.
// The value returned is the logical OR of multiple possible formats.
// If the value is FormatUnknown, then the input Header cannot be encoded
// and an error is returned explaining why.
//
// As a by-product of checking the fields, this function returns paxHdrs, which
// contain all fields that could not be directly encoded.

重要なのは、**`Annotated` の中で関数と一緒に `AfterValidator` を使うこと** だけです。この部分は飛ばしても構いません。 🤸

---

ただし、この具体的なコード例が気になっていて、まだ興味が続くなら、追加の詳細を示します。

#### `value.startswith()` を使う文字列 { #string-with-value-startswith }

気づきましたか？`value.startswith()` を使う文字列はタプルを受け取れ、そのタプル内の各値をチェックします:

{* ../../docs_src/query_params_str_validations/tutorial015_an_py310.py ln[16:19] hl[17] *}

#### ランダムなアイテム { #a-random-item }

    }

    /**
     * Creates a new Maven-like repository system session by initializing the session with values typical for
     * Maven-based resolution. In more detail, this method configures settings relevant for the processing of dependency
     * graphs, most other settings remain at their generic default value. Use the various setters to further configure

}\n}\n\n// Helper function to get the formatted non-responsive value\n@function rfs-value($values) {\n  // Convert to list\n  $values: if(type-of($values) != list, ($values,), $values);\n\n  $val: \"\";\n\n  // Loop over each value and calculate value\n  @each $value in $values {\n    @if $value == 0 {\n      $val: $val + \" 0\";\n    }\n    @else {\n      // Cache $value unit\n      $unit: if(type-of($value) == \"number\", unit($value), false);\n\n      @if $unit == px {\n        // Convert to rem...

   */
  static boolean casValue(AbstractFutureState<?> future, @Nullable Object expect, Object update) {
    return ATOMIC_HELPER.casValue(future, expect, update);
  }

  /** Returns the value of the future, using a volatile read. */
  final @Nullable Object value() {
    return valueField;
  }

  /** Returns the head of the listener stack, using a volatile read. */
  final @Nullable Listener listeners() {
    return listenersField;
  }

    }

    /**
     * Test that evaluate handles paramMap with null values
     */
    @Test
    public void test_evaluate_paramMapWithNullValues() {
        final Map<String, Object> params = new HashMap<>();
        params.put("key1", null);
        params.put("key2", "value");
        assertEquals("value", groovyEngine.evaluate("return key2", params));

    BACK {
      @Override
      <T> void insertInto(Deque<T> deque, T value) {
        deque.addLast(value);
      }
    };

    abstract <T> void insertInto(Deque<T> deque, T value);
  }

1.  `envs/*` are lists of variables made with bash syntax. A user must set a
    `TFCI` env param pointing to a list of `env` files.
2.  `utilities/setup.sh`, initialized by all top-level scripts, reads and sets
    values from those `TFCI` paths.
    -   `set -a` / `set -o allexport` exports the variables from `env` files so
        all scripts can use them.
    -   `utilities/setup_docker.sh` creates a container called `tf` with all

// invalid usage. opReadRuneX constants are chosen such that
// converted to int they correspond to the rune size that was read.
type readOp int8

// Don't use iota for these, as the values need to correspond with the
// names and comments, which is easier to see when being explicit.
const (
	opRead      readOp = -1 // Any other read operation.
	opInvalid   readOp = 0  // Non-read operation.

	t.Helper()

	// replace SQL quote, convert into postgresql like ""
	expected = replaceQuoteInSQL(expected)
	actually = replaceQuoteInSQL(actually)

	// ignore updated_at value, because it's generated in Gorm internal, can't to mock value on update.
	updatedAtRe := regexp.MustCompile(`(?i)"updated_at"=".+?"`)
	actually = updatedAtRe.ReplaceAllString(actually, `"updated_at"=?`)