Python多线程执行测试用例请教

请教，每一个测试用例执行时需要休息10s，如何使用多线程方法，将测试用例全部执行完，只需要10s左右的时间？

源代码如下：
import unittest,threading
def test_task(name):
    print(f"{threading.current_thread().name}:",name)
    time.sleep(10)

class TestTask(unittest.TestCase):
    def test01(self):
        test_task(1)
    def test02(self):
        test_task(2)
    def test03(self):
        test_task(3)
    def test04(self):
        test_task(4)
    def test05(self):
        test_task(5)
    def test06(self):
        test_task(6)
    def test07(self):
        test_task(7)
    def test08(self):
        test_task(8)
    def test09(self):
        test_task(9)
    def test10(self):
        test_task(10)

import unittest,threading
def test_task(name):
    print(f"{threading.current_thread().name}:",name)
    time.sleep(10)

class TestTask(unittest.TestCase):
    def test01(self):
        test_task(1)
    def test02(self):
        test_task(2)
    def test03(self):
        test_task(3)
    def test04(self):
        test_task(4)
    def test05(self):
        test_task(5)
    def test06(self):
        test_task(6)
    def test07(self):
        test_task(7)
    def test08(self):
        test_task(8)
    def test09(self):
        test_task(9)
    def test10(self):
        test_task(10)
    def run(self):
        func_lst = [self.test01, self.test02, self.test03, self.test04, self.test05, self.test06, self.test07, self.test08, self.test09, self.test10]
        target_lst = [threading.Thread(target = i) for i in func_lst]
        for i in target_lst:
            i.start()

if __name__ == '__main__':
    tt = TestTask()
    tt.run()

th=threading.Thread(target=test01)
th.start()
就这样把10个函数都作为线程执行

厉害啊