def METHOD_NAME(self):
    # The optionContainer must be at least the size of it's largest content,
    # with a hard minimum to prevent absurdly small optioncontainers.
    min_width = self.interface._MIN_WIDTH
    min_height = self.interface._MIN_HEIGHT
    for sub_container in self.sub_containers:
        min_width = max(min_width, sub_container.min_width)
        min_height = max(min_height, sub_container.min_height)
    self.interface.intrinsic.width = at_least(min_width)
    self.interface.intrinsic.height = at_least(min_height)