'Get the count of a word or phrase `s` within this WordList.
:param strg: The string to count.
:param case_sensitive: A boolean, whether or not the search is case-sensitive.'

def count(self, strg, case_sensitive=False, *args, **kwargs):

    if (not case_sensitive):
        return [word.lower() for word in self].count(strg.lower(), *args, **kwargs)
    return self._collection.count(strg, *args, **kwargs)
