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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def from_timestamp(timestamp, tz_offset):
 """Converts a timestamp + tz_offset into an aware datetime instance."""

    utc_dt = datetime.fromtimestamp(timestamp, utc)
    try:
        local_dt = utc_dt.astimezone(tzoffset(tz_offset))
        return local_dt
    except ValueError:
        return utc_dt