The setFromHex() method of Uint8Array instances populates this Uint8Array object with bytes from a hex-encoded string, returning an object indicating how many bytes were read and written.

The deref() method of WeakRef instances returns this WeakRef's target value, or undefined if the target value has been garbage-collected.

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The Temporal.ZonedDateTime.from() static method creates a new Temporal.ZonedDateTime object from another Temporal.ZonedDateTime object, an object with date, time, and time zone properties, or an RFC 9557 string.

The since() method of Temporal.Instant instances returns a new Temporal.Duration object representing the duration from another instant (in a form convertible by Temporal.Instant.from()) to this instant. The duration is positive if the other instant is before this instant, and negative if after.

The valueOf() method of Temporal.PlainTime instances throws a TypeError, which prevents Temporal.PlainTime instances from being implicitly converted to primitives when used in arithmetic or comparison operations.

The withCalendar() method of Temporal.PlainDate instances returns a new Temporal.PlainDate object representing this date interpreted in the new calendar system. Because all Temporal objects are designed to be immutable, this method essentially functions as the setter for the date's calendarId property.

The daysInYear accessor property of Temporal.PlainDateTime instances returns a positive integer representing the number of days in the year of this date. It is calendar-dependent.

The since() method of Temporal.PlainYearMonth instances returns a new Temporal.Duration object representing the duration from another year-month (in a form convertible by Temporal.PlainYearMonth.from()) to this year-month. The duration is positive if the other month is before this month, and negative if after.

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