在把matlab打包成python库以供python调用的过程中，按照官方文档来的之前没什么报错，但是在用python pycharm 运行，遇到了如下问题，报错如下：
C:\Users\10413\AppData\Local\Programs\Python\Python38\python.exe F:/ex_2/main.py
Traceback (most recent call last):
File "F:/ex_2/main.py", line 5, in
my_EX_4 = EX_4.initialize()
AttributeError: module 'EX_4' has no attribute 'initialize'
Process finished with exit code 1
python代码如下
from __future__ import print_function
import EX_4
import matlab
my_EX_4 = EX_4.initialize()
waveIn = matlab.double([0.0], size=(1, 1))
IIn = matlab.double([0.0], size=(1, 1))
my_EX_4.ex_4(waveIn, IIn, nargout=0)
my_EX_4.terminate()
我试着在ex_4这个文档里找，但是没有找到initialize模块，请问这是啥问题。
ps:官方文档