Method __init__

example_code/item_051_example_05.py:23–28

(
        self, red: int, green: int, blue: int
    )

class RGB:
    def __init__(
        self, red: int, green: int, blue: int
    ) -> None:  # Changed
        self.red = red
        self.green = green
        self.blue = blue


obj = RGB(1, "bad", 3)