python callback design pattern

I have following code design:

class A:

    def __init__(self, serial):
        self.serial = serial

    def callback(self, data):
        if data.type == 5:
            print(data.response)
        if data.type == 10:
            print(data.response)
        if data.type == 15:
            print(data.response)

    def command(self):
        self.serial.send(5, self.callback)
        self.serial.send(10, self.callback)
        self.serial.send(15, self.callback)

serial has a queue in which stream data is coming, the queue data is then read in a separate thread and command respective callbacks are called. (This design can also be changed if needed).

now what I am looking for is to send the response from the command function itself.

def command(self):
    self.serial.send(5, self.callback)
    self.serial.send(10, self.callback)
    self.serial.send(15, self.callback)

    status1 = self.get_status(5)
    status2 = self.get_status(10)
    status3 = self.get_status(15)
    return status1, status2, status3

current Ideas to implement get_status:

To have a wait for timeout time and check if command response received. (need to have a separate variable for each command, also there can be some commands that don't require to return any response)

timeout = 2 # in sec
while not self.response5 and timeout > 0:
    time.sleep(0.5)
    timeout -= 0.5

will store data.response in self.response5 in callaback otherwise None

Is there any better and easier way?