Python Object-Oriented Python Inheritance Multiple Superclasses

inheritance Agile and Sneaky

import random

class Sneaky:
    sneaky = True

    def __init__(self, sneaky=True, *args, **kwargs):
        super().__init__(*args, **kwargs)
        self.sneaky = sneaky

    def hide(self, light_level):
        return self.sneaky and light_level < 10

class Agile:
    agile = True

    def __init__(self, agile=True, *args, **kwargs):
        super().__init__(*args, **kwargs)
        self.agile = agile

    def evade(self):
        return self.agile and random.randint(0, 1)

My question is that the attributes class does not inherit any other class, but in the init methods for Agile and Sneaky there is a super() call. To what superclass is this super() referring to?