It does not copy folders and files recursively

[jarucho]

I am trying to use it in order to copy from a folder in an sftp into a local folder of my pc:

folder:
one_folder:
1 file.txt
other_file.txt
other_folder:
once_more_file.txt

The result in dest is that I have only "one_folder" and "other_folder" but both empty.

sftp.sync(src, dst, download=True, delete=True)
been src a folder in the ftp server, and dst a folder in my local machine.

Thanks!