How to call get one module output into another module of same class in python?

Question

i have a class

class car_condition:
    
    def __init__(self,speed):
        self.speed= speed
    
    def increase_speed(self):
        self.speed=5
        kl=self.speed*self.speed if self.speed>= 5 else self.speed*15
        return kl
    
    def get_speed(self,increase_speed):  #want to call increase_speed module here
        
        k=increase_speed()  #should return me 25 
        txt = f"the speed of the car is {k} mil/hr"
        return txt

hence when i initiate class car_condition and call get speed i get an error

speedy_car = car_condition(5)
speedy_car.get_speed()

getting an error get_speed() missing 1 required positional argument: 'increase_speed'

Expected output:

the speed of the car is 25 mil/hr