<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def _findSingleMemberGroups(classDictionaries):
 """ Find all classes that have only one member. """

    toRemove = {}
    for classDictionaryGroup in classDictionaries:
        for classDictionary in classDictionaryGroup:
            for name, members in list(classDictionary.items()):
                if len(members) == 1:
                    toRemove[name] = list(members)[0]
                    del classDictionary[name]
    return toRemove