How do I increase a value (num) in a method and decrease another defined in a class in Python?

Question

I am making a game in python and I need to create a method to increase/decrease a value that I define in a class. The method receives a number and with that i have to modify the other. This is my code:

class Ant:
    def __init__(self, name, steps, health, alcohol, state):
        self.name = name
        self.steps = []
        self.health = 100
        self.alcohol = 0
        self.state = state

I need to modify the health.. Help me please

Answer 1

Define a method with a single argument and modify the self.health :

class Ant:
    def __init__(self, name, steps, health, alcohol, state):
        self.name = name
        self.steps = []
        self.health = 100
        self.alcohol = 0
        self.state = state

    def add_health(self, value):
        self.health += value

    # bonus
    def drink(self, value):
        self.alcohol += value
        self.health -= value

Answer 2

You can make some function that subtracts from the Ant s health. For example:

class Ant:
    def __init__(self, name, steps, health, alcohol, state):
        self.name = name
        self.steps = []
        self.health = 100
        self.alcohol = 0
        self.state = state

    def damage(self, amount):
        self.health -= amount