如何使用自定义类实例的python collections.deque？

我试图利用来自集合模块的python deque，其中deque内的元素是自定义类实例。我想知道如何擦除/删除对象？如果可以，我可以使用诸如deque.remove（element）之类的内置方法吗？它将如何找到我的自定义对象？

class Buffer(object):

    """ """
    def __init__(self, name, size_total, size_in_cache):
        self.name = name
        self.size_total = size_total

 class Storage(object):
    """
    """
    def __init__(self, capacity):
        self.CAPACITY = capacity
        self.contents = collections.deque()
        self.capacity_used = 0      

    def push_to_contents(self, buffer_name, buffer_size):
        buf = Buffer(buffer_name, buffer_size)
        self.contents.appendleft(buf)

    def delete_from_contents(self, buffer_name)
        """ HOW??
        How can I use self.contents.remove() here>      
        """