# code without issues
a = 1
a = 1

class MyClass:
    a = 1
    foo.a = 1
    x = y = 1

    def a(self):
        pass

    def __init__(self):
        a = 1
        a = 1
        self.b = 1
        self.b = 1


# code with issues
class MyClass:
    a = 1
    b = 2
    c = 3

    def foo(): pass

    a = 2
    c = 5
    d = 1
    a = 2
    x = _ = x = 1
