如何在pandas数据框中导入tfrecord文件？

import tensorflow as tf
import pandas as pd

dataset = tf.data.TFRecordDataset('path/to/tfrecord_file.tfrecord')

def parse_tfrecord_fn(example):
    feature_description = {
        'feature1': tf.io.FixedLenFeature([], tf.int64),
        'feature2': tf.io.FixedLenFeature([], tf.float32),
        'feature3': tf.io.FixedLenFeature([], tf.string),
    }
    example = tf.io.parse_single_example(example, feature_description)
    return example

parsed_dataset = dataset.map(parse_tfrecord_fn)

df = pd.DataFrame(parsed_dataset)