如何在Pandas DataFrames中显示IntEnums的名称

import pandas as pd
from enum import IntEnum

class MyEnum(IntEnum):
    VALUE1 = 1
    VALUE2 = 2
    VALUE3 = 3

data = {'Column1': [MyEnum.VALUE1, MyEnum.VALUE2, MyEnum.VALUE3]}
df = pd.DataFrame(data)

enum_mapping = {e.value: e.name for e in MyEnum}

df['Column1'] = df['Column1'].replace(enum_mapping)