如何在hydra python中创建同一组的两个字段？

from omegaconf import OmegaConf
from hydra.core.config_store import ConfigStore
from dataclasses import dataclass

@dataclass
class MyConfig:
    field1: str = "value1"
    field2: str = "value2"

cs = ConfigStore.instance()
cs.store(name="config", node=MyConfig)

# config.yaml
defaults:
  - config

field_group:
  field1: "new_value1"
  field2: "new_value2"

config = OmegaConf.load("config.yaml")
print(config.field_group.field1)  # 输出：new_value1
print(config.field_group.field2)  # 输出：new_value2