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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 PushEvent(self, timestamp, event_data):
 """Pushes a serialized event onto the heap. Args: timestamp (int):
 event timestamp, which contains the number of micro seconds since January 1, 1970, 00:00:00 UTC. event_data (bytes):
 serialized event. """

    heap_values = (timestamp, event_data)
    heapq.heappush(self._heap, heap_values)
    self.data_size += len(event_data)