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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 mavlink_packet(self, m):
        '''handle REMOTE_LOG_DATA_BLOCK packets'''
        now = time.time()
        if m.get_type() == 'REMOTE_LOG_DATA_BLOCK':
            if self.stopped:
                # send a stop packet every second until the other end gets the idea:
                if now - self.time_last_stop_packet_sent > 1:
                    if self.log_settings.verbose:
                        print("DFLogger: Sending stop packet")
                    self.master.mav.remote_log_block_status_send(mavutil.mavlink.MAV_REMOTE_LOG_DATA_BLOCK_STOP,1)
                return

#            if random.random() < 0.1: # drop 1 packet in 10
#                return


            if not self.new_log_started:
                if self.log_settings.verbose:
                    print("DFLogger: Received data packet - starting new log")
                self.start_new_log()
                self.new_log_started = True
            if self.new_log_started == True:
                size = m.block_size
                data = ''.join(str(chr(x)) for x in m.data[:size])
                ofs = size*(m.block_cnt)
                self.logfile.seek(ofs)
                self.logfile.write(data)

                if m.block_cnt in self.missing_blocks:
                    if self.log_settings.verbose:
                        print("DFLogger: Received missing block: %d" % (m.block_cnt,))
                    del self.missing_blocks[m.block_cnt]
                    self.missing_found += 1
                    self.blocks_to_ack_and_nack.append([self.master,m.block_cnt,1,now,None])
                    self.acking_blocks[m.block_cnt] = 1
#                    print("DFLogger: missing blocks: %s" % (str(self.missing_blocks),))
                else:
                    # ACK the block we just got:
                    if m.block_cnt in self.acking_blocks:
                        # already acking this one; we probably sent
                        # multiple nacks and received this one
                        # multiple times
                        pass
                    else:
                        self.blocks_to_ack_and_nack.append([self.master,m.block_cnt,1,now,None])
                        self.acking_blocks[m.block_cnt] = 1
                        # NACK any blocks we haven't seen and should have:
                        if(m.block_cnt - self.block_cnt > 1):
                            for block in range(self.block_cnt+1, m.block_cnt):
                                if block not in self.missing_blocks and \
                                   block not in self.acking_blocks:
                                    self.missing_blocks[block] = 1
                                    if self.log_settings.verbose:
                                        print ("DFLogger: setting %d for nacking" % (block,))
                                    self.blocks_to_ack_and_nack.append([self.master,block,0,now,None])
                        #print "\nmissed blocks: ",self.missing_blocks
                    if self.block_cnt < m.block_cnt:
                        self.block_cnt = m.block_cnt
                self.download += size
        elif not self.new_log_started and not self.stopped:
            # send a start packet every second until the other end gets the idea:
            if now - self.time_last_start_packet_sent > 1:
                if self.log_settings.verbose:
                    print("DFLogger: Sending start packet")
                self.master.mav.remote_log_block_status_send(mavutil.mavlink.MAV_REMOTE_LOG_DATA_BLOCK_START,1)
                self.time_last_start_packet_sent = now