How to use the waitress.wasyncore.close_all function in waitress

testmap = {}
        for i in range(10):
            c = dummychannel()
            l.append(c)
            self.assertEqual(c.socket.closed, False)
            testmap[i] = c

        if usedefault:
            socketmap = asyncore.socket_map
            try:
                asyncore.socket_map = testmap
                asyncore.close_all()
            finally:
                testmap, asyncore.socket_map = asyncore.socket_map, socketmap
        else:
            asyncore.close_all(testmap)

        self.assertEqual(len(testmap), 0)

        for c in l:
            self.assertEqual(c.socket.closed, True)

def closeall_check(self, usedefault):
        # Check that close_all() closes everything in a given map

        l = []
        testmap = {}
        for i in range(10):
            c = dummychannel()
            l.append(c)
            self.assertEqual(c.socket.closed, False)
            testmap[i] = c

        if usedefault:
            socketmap = asyncore.socket_map
            try:
                asyncore.socket_map = testmap
                asyncore.close_all()
            finally:
                testmap, asyncore.socket_map = asyncore.socket_map, socketmap
        else:
            asyncore.close_all(testmap)

        self.assertEqual(len(testmap), 0)

        for c in l:
            self.assertEqual(c.socket.closed, True)

def tearDown(self):
        asyncore.close_all(ignore_all=True)

def tearDown(self):
        asyncore.close_all()

def _callFUT(self, map=None, ignore_all=False):
        from waitress.wasyncore import close_all

        return close_all(map, ignore_all)