👉 A nestable is a type of object that can be stored in a nested container. This means it can have all its children and parents, but not any child or parent from another nesting level. In other words, a nestable can only contain one child, while other objects may have multiple children. For example, a "nested" list structure could look like this: ``` list = [1, 2, 3] nested_list = [list[0], list[1],
