save a docxtpl to smbclient in python

Question

I'd like to save a docx template on samba share drive.
I'm currently using smbclient for that.

import smbclient  #pip install smbprotocol


with smbclient.open_file(r"\\servername\share\myfile.txt", mode='w') as fd :
    fd.write(u"this works")

but now instead of writing a txt file, I want to write my docx template :

from docxtpl import DocxTemplate
        template_docx = DocxTemplate(template_name)
        template_docx.render(data)
        template_docx.save('myfile.docx') # this works
        with smbclient.open_file(r"\\servername\share\myfile.docx",mode='w') as fd :
             template_docx.save(fd) # this does not work

I really don't understand how smbclient works and if it's even possible.
Can I even copy a file to from my machine to my smb drive using smbclient ? If so, that can be a workaround
I also tried smb.SMBConnection but it doesn't work (SMB connection not authenticated)

---

error message :

write() argument must be str, not bytes
Exception ignored in: <function ZipFile.__del__ at 0x000001BA237FE020>
Traceback (most recent call last):
  File "C:\Program Files\Python311\Lib\zipfile.py", line 1874, in __del__
    self.close()
  File "C:\Program Files\Python311\Lib\zipfile.py", line 1891, in close
    self.fp.seek(self.start_dir)
ValueError: I/O operation on closed file.