如何获得两个不同的django模型字段的差异？

from django.apps import apps

def get_field_diff(model1, model2):
    fields1 = model1._meta.get_fields()
    fields2 = model2._meta.get_fields()
    diff_fields = []

    for field1 in fields1:
        if field1 not in fields2:
            diff_fields.append(field1)

    for field2 in fields2:
        if field2 not in fields1:
            diff_fields.append(field2)

    return diff_fields

model1 = apps.get_model('app_name', 'Model1')
model2 = apps.get_model('app_name', 'Model2')

diff_fields = get_field_diff(model1, model2)