constraints.URL.message = {item} is not a valid URL.
constraints.Required.message = {item} is required.
constraints.TypeInteger.message = {item} must be a number.
constraints.TypeLong.message = {item} must be a number.
constraints.TypeFloat.message = {item} must be a number.
constraints.TypeDouble.message = {item} must be a number.
constraints.TypeAny.message = {item} cannot be converted to {propertyType}.
constraints.UriType.message = {item} has an unrecognized URI.

Lo pones encima de una función. Como un bonito sombrero decorativo (supongo que de ahí viene el término).

Un "decorador" toma la función de abajo y hace algo con ella.

En nuestro caso, este decorador le dice a **FastAPI** que la función de abajo corresponde al **path** `/` con una **operation** `get`.

Es el "**path operation decorator**".

///

También puedes usar las otras operaciones:

nieprawidłowy adres URL",badCustomVal:"Wprowadzona wartość jest niepoprawna",andSpaces:" i odstępy",badInt:"Wprowadzono nieprawidłowy numer",badSecurityNumber:"Wprowadzono niepoprawny numer ubezpieczenia społecznego",badUKVatAnswer:"Wprowadzono niepoprawny brytyjski numer VAT",badUKNin:"Wprowadzono niepoprawny brytyjski numer NIP",badUKUtr:"Wprowadzono niepoprawny brytyjski numer podatnika",badStrength:"Twoje hasło nie jest wystarczająco mocne",badNumberOfSelectedOptionsStart:"Musisz wybrać przynajmniej...

labels.givenName=Given Name
labels.user_surname=Surname
labels.surame=Surname
labels.user_mail=Mail
labels.mail=Mail
labels.user_employeeNumber=Employee Number
labels.employeeNumber=Employee Number
labels.user_telephoneNumber=Telephone Number
labels.telephoneNumber=Telephone Number
labels.user_homePhone=Home Phone
labels.homePhone=Home Phone
labels.user_homePostalAddress=Home Postal Address
labels.homePostalAddress=Home Postal Address

        this.negotiatedVersion = negotiatedVersion;
    }

    /**
     * Get the number of send credits granted
     *
     * @return credits granted
     */
    public int getCreditsGranted() {
        return creditsGranted;
    }

    /**
     * Set the number of send credits granted
     *
     * @param creditsGranted credits to grant
     */

   * skipped.
   *
   * @param streamId server-initiated stream ID: an even number.
   * @param source location of data corresponding with this stream ID.
   * @param byteCount number of bytes to read or skip from the source.
   * @param last when true, there are no data frames to follow.
   */
  @Throws(IOException::class)
  fun onData(
    streamId: Int,
    source: BufferedSource,

   * hexadecimal number in lower case.
   *
   * <p>Note that if the output is considered to be a single hexadecimal number, whether this string
   * is big-endian or little-endian depends on the byte order of {@link #asBytes}. This may be
   * surprising for implementations of {@code HashCode} that represent the number in big-endian

   * bulkGet(keys)} with a relative large number of keys can cause an excessive number of shared
   * stripes (much like the birthday paradox, where much fewer than anticipated birthdays are needed
   * for a pair of them to match). Please consider carefully the implications of the number of
   * stripes, the intended concurrency level, and the typical number of keys used in a {@code

        src[srcIndex + 8] = 0x00;
        src[srcIndex + 9] = 0x00;
        // RData length
        src[srcIndex + 10] = 0x00;
        src[srcIndex + 11] = 0x1F; // 31 bytes: 1 + 18 + 6 + 6
        // Number of names (1)
        src[srcIndex + 12] = 0x01;
        // Name entry (18 bytes)
        String name = "TEST            ";
        System.arraycopy(name.getBytes("US-ASCII"), 0, src, srcIndex + 13, 16);

			if setSize%s == 0 {
				ss = append(ss, s)
			}
		}
		return ss
	}

	setCounts := possibleSetCounts(commonSize)
	if len(setCounts) == 0 {
		msg := fmt.Sprintf("Incorrect number of endpoints provided %s, number of drives %d is not divisible by any supported erasure set sizes %d", args, commonSize, setSizes)
		return nil, config.ErrInvalidNumberOfErasureEndpoints(nil).Msg(msg)
	}

	var setSize uint64