Какие использовал форматы данных

import json
data = {"name": "Alice", "age": 25}
json_str = json.dumps(data)  # Сериализация
loaded_data = json.loads(json_str)  # Десериализация

import xml.etree.ElementTree as ET
root = ET.Element("person")
name = ET.SubElement(root, "name")
name.text = "Bob"
tree = ET.ElementTree(root)
tree.write("data.xml")

import csv
with open('data.csv', 'w') as f:
    writer = csv.writer(f)
    writer.writerow(["Name", "Age"])
    writer.writerow(["Alice", 25])

import yaml
data = {"user": {"name": "Alice", "roles": ["admin"]}}
yaml_str = yaml.dump(data)