<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def ini_dump_hook(cfg, text: bool=False):
 """ Dumps all the data into a INI file. This will automatically kill anything with a '_' in the keyname, replacing it with a dot. You have been warned. """

    data = cfg.config.dump()

    # Load data back into the goddamned ini file.
    ndict = {}
    for key, item in data.items():
        key = key.replace('_', '.')
        ndict[key] = item

    cfg.tmpini = configparser.ConfigParser()
    cfg.tmpini.read_dict(data)
    if not text:
        cfg.tmpini.write(cfg.fd)
    else:
        return
    cfg.reload()