当value为consective 1 4次时，如何保持pandas groupby中的分组

import pandas as pd

# 创建示例数据
data = {'value': [1, 1, 1, 2, 2, 1, 1, 1, 1, 3, 3, 3, 3]}
df = pd.DataFrame(data)

# 使用shift函数和cumsum函数进行分组
df['group'] = (df['value'] != df['value'].shift()).cumsum()
df['consective_count'] = df.groupby('group')['value'].transform('count')

# 分组保留连续出现四次的值
result = df[df['consective_count'] == 4]

print(result)

    value  group  consective_count
6       1      3                 4
7       1      3                 4
8       1      3                 4
9       3      4                 4
10      3      4                 4
11      3      4                 4
12      3      4                 4