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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 write(self, memory, addr, data, flush_queue=False):
 """Write the specified data to the given memory at the given address"""

        wreq = _WriteRequest(memory, addr, data, self.cf)
        if memory.id not in self._write_requests:
            self._write_requests[memory.id] = []

        # Workaround until we secure the uplink and change messages for
        # mems to non-blocking
        self._write_requests_lock.acquire()
        if flush_queue:
            self._write_requests[memory.id] = self._write_requests[
                memory.id][:1]
        self._write_requests[memory.id].insert(len(self._write_requests), wreq)
        if len(self._write_requests[memory.id]) == 1:
            wreq.start()
        self._write_requests_lock.release()

        return True