如何在创建python wordcloud时对多字词进行分组？

import jieba
from wordcloud import WordCloud
from collections import Counter

text = "这是一段示例文本，用于创建WordCloud。这个WordCloud可以对多字词进行分组。"
word_list = jieba.lcut(text)

word_count = Counter(word_list)
multi_words = [word for word, count in word_count.items() if len(word) > 1 and count > 1]

# 示例：根据词性进行分组
grouped_words = {}
for word in multi_words:
    word_pos = jieba.posseg.cut(word)
    for w, pos in word_pos:
        if pos not in grouped_words:
            grouped_words[pos] = []
        grouped_words[pos].append(w)

# 示例：创建WordCloud并显示
wordcloud = WordCloud(font_path='simhei.ttf', background_color='white')
wordcloud.generate_from_frequencies(grouped_words)
import matplotlib.pyplot as plt
plt.imshow(wordcloud, interpolation='bilinear')
plt.axis('off')
plt.show()