OptionaldaysDays of week in which the window is allowed to happen If not specified all days of the week will be used.
OptionalstartAn integer between 0 and 23 denoting the start hour for the window in the 24-hour day.
OptionaltimeTime zone id of window. See https://docs.databricks.com/sql/language-manual/sql-ref-syntax-aux-conf-mgmt-set-timezone.html for details. If not specified, UTC will be used.
Proto representing a window