<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def to_date(ts: float) -> datetime.date: """Convert timestamp to date. datetime.date(2001, 1, 2) """

    return datetime.datetime.fromtimestamp(
        ts, tz=datetime.timezone.utc).date()