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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def ftp_listing_paths(ftpconn: FTP, root: str) -> Iterable[str]: """Generate the full file paths from a root path."""


    for current_path, dirs, files in ftp_walk(ftpconn, root):
        yield from (os.path.join(current_path, file) for file in files)