}

func buildServerCtxt(ctx *cli.Context, ctxt *serverCtxt) (err error) {
	// Get "json" flag from command line argument and
	ctxt.JSON = ctx.IsSet("json") || ctx.GlobalIsSet("json")
	// Get quiet flag from command line argument.
	ctxt.Quiet = ctx.IsSet("quiet") || ctx.GlobalIsSet("quiet")
	// Get anonymous flag from command line argument.
	ctxt.Anonymous = ctx.IsSet("anonymous") || ctx.GlobalIsSet("anonymous")
	// Fetch address option

package sql

import (
	"errors"
	"strings"
)

var (
	errMalformedEscapeSequence  = errors.New("Malformed escape sequence in LIKE clause")
	errInvalidTrimArg           = errors.New("Trim argument is invalid - this should not happen")
	errInvalidSubstringIndexLen = errors.New("Substring start index or length falls outside the string")
)

const (
	percent    rune = '%'
	underscore rune = '_'

    logger.fine("   Sizes: " + formatFeatureSet(sizesToTest));

    if (sizesToTest.isEmpty()) {
      throw new IllegalStateException(
          name
              + ": no CollectionSizes specified (check the argument to "
              + "FeatureSpecificTestSuiteBuilder.withFeatures().)");
    }

    TestSuite suite = new TestSuite(name);
    for (Feature<?> collectionSize : sizesToTest) {
      String oneSizeName =

   * {@code enumClass} using {@link Enum#valueOf(Class, String)} and {@link Enum#name()}. The
   * converter will throw an {@code IllegalArgumentException} if the argument is not the name of any
   * enum constant in the specified enum.
   *
   * @since 16.0
   */
  @GwtIncompatible
  public static <T extends Enum<T>> Converter<String, T> stringConverter(Class<T> enumClass) {

    }

    public static String url(final String input) {
        if (input == null) {
            final String msg = "The argument 'input' should not be null.";
            throw new IllegalArgumentException(msg);
        }
        if (!input.startsWith("/")) {
            final String msg = "The argument 'input' should start with slash '/': " + input;
            throw new IllegalArgumentException(msg);
        }

        pos += lenToRead;
        return lenToRead;
      }
    }
  }

  /**
   * @param input the size of the input source
   * @param offset the first argument to {@link ByteSource#slice}
   * @param length the second argument to {@link ByteSource#slice}
   * @param expectRead the number of bytes we expect to read
   */
  private static void assertCorrectSlice(int input, int offset, long length, int expectRead)

					save(line)
					record = true
				} else {
					skip = true
				}
			}
		}
	}

	return ret, nil
}

const helpUsage = `

At least one argument is required to run this tool.

EXAMPLE:
     ./pprofgoparser --time 50m --margin 1m /path/to/*-goroutines-before,debug=2.txt
`

func main() {
	flag.Parse()

	if len(flag.Args()) == 0 {

		t.Fatal(err)
	}

	// Now file should be closed.
	isClosed = rlk.IsClosed()
	if !isClosed {
		t.Fatal("File ref count should be zero")
	}

	// Closing a file again should result in invalid argument.
	if err = rlk.Close(); err != os.ErrInvalid {
		t.Fatal(err)
	}

	_, err = newRLockedFile(nil)
	if err != os.ErrInvalid {
		t.Fatal("Unexpected error", err)
	}
}

FLAGS:
  {{range .VisibleFlags}}{{.}}
  {{end}}
`
	app.Flags = []cli.Flag{}
	app.Action = func(c *cli.Context) error {
		if !c.Args().Present() {
			cli.ShowAppHelpAndExit(c, 1) // last argument is exit code
		}

		ht := make(map[string]map[string]interface{})
		file := c.Args().Get(0)
		if strings.HasSuffix(file, ".zip") {
			var sz int64
			f, err := os.Open(file)
			if err != nil {
				return err

Mais si vous décidez d'apprendre à les utiliser, sachez qu'ensuite vous pouvez les utiliser directement dans **FastAPI**.

## Valeurs par défaut

De la même façon que vous pouvez passer `None` comme premier argument pour l'utiliser comme valeur par défaut, vous pouvez passer d'autres valeurs.

Disons que vous déclarez le paramètre `q` comme ayant une longueur minimale de `3`, et une valeur par défaut étant `"fixedquery"` :