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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 current_time(self) -> datetime: """Extract current time."""

        _date = datetime.strptime(self.obj.SBRes.SBReq.StartT.get("date"), "%Y%m%d")
        _time = datetime.strptime(self.obj.SBRes.SBReq.StartT.get("time"), "%H:%M")
        return datetime.combine(_date.date(), _time.time())