class Folder:
    def __init__(self, name):
        self.name = name
        self.children = {}

    def add_child(self, child):
        pass

    def move(self, new_path):
        pass

    def copy(self, new_path):
        pass

    def delete(self):
        pass

class File:
    def __init__(self, name, contents):
        self.name = name
        self.contents = contents

    def move(self, new_path):
        pass

    def copy(self, new_path):
        pass

    def delete(self):
        pass
