## Field.is_locked property Gets or sets whether the field is locked (should not recalculate its result). ```python @property def is_locked(self) -> bool: ... @is_locked.setter def is_locked(self, ......FIELD_DATE, update_field=True).as_field_date() field.format...format.date_time_format = 'dddd, MMMM dd, yyyy' field.update()...