#!/usr/bin/env python3

def outer():
    def nested():
        pass
    return nested

def top_level():
    pass

def another_top():
    def deeply_nested():
        def double_nested():
            pass
        return double_nested
    return deeply_nested

# Total: 4 functions (3 top-level + 1 nested at first level + 1 deeply nested + 1 double nested)