112 def _finalize_set(msg, disposition, filename, cid, params):  argument
113     if disposition is None and filename is not None:
114         disposition = 'attachment'
115     if disposition is not None:
116         msg['Content-Disposition'] = disposition
182                      disposition=None, filename=None, cid=None,  argument
191     _finalize_set(msg, disposition, filename, cid, params)
196                        disposition=None, filename=None, cid=None,  argument
224     _finalize_set(msg, disposition, filename, cid, params)
229                      disposition=None, filename=None, cid=None,  argument
246     _finalize_set(msg, disposition, filename, cid, params)