peewee，如何查询指定的表？

from peewee import *

# 定义数据库连接
db = MySQLDatabase('database_name', user='username', password='password', host='localhost', port=3306)

# 定义模型类
class MyModel(Model):
    # 定义表字段
    field1 = CharField()
    field2 = IntegerField()

    class Meta:
        database = db
        table_name = 'my_table'  # 指定要查询的表名

# 连接数据库
db.connect()

# 查询所有记录
query = MyModel.select()
for record in query:
    print(record.field1, record.field2)

# 查询满足条件的记录
query = MyModel.select().where(MyModel.field1 == 'value')
for record in query:
    print(record.field1, record.field2)