Python 如何将验证器应用于PYDANC2中的EACHY_ITEM

我正在将一个微服务从PYDANIC 1迁移到PYDANC2.以前我有这样的服务:

class ComplementQuery(BaseModel):
    imports: List[str] = Field(default_factory=list)
    subquery: str = Field(...)

    @validator("imports", pre=True, each_item=True)
    def complement_imports(cls, value: str) -> str:
        return f'import "{value}"'

我阅读了文档，发现现在必须使用@field_validator.替换验证器并将"Pre=True"更改为"MODE="BEFORE".但Each_Items我不确定它应该如何寻址.现在我有如下内容:

class ComplementQuery(BaseModel):
    imports: List[Annotated[str, Field(default_factory=List)]]
    subquery: str = Field(...)

    @field_validator("imports", mode="before")
    @classmethod
    def complement_imports(cls, value: str) -> str:
        return f'import "{value}"'

COMPARY_IMPORTS验证器是否将应用于每个导入项？ 或者，我是否应该将pydanti.unctionalvalidators的BeForeValidator放在该字段中？我有点困惑.

也许应该是这样的:

def complement_imports(v: str) -> str:
    return f'import "{v}"'


class ComplementQuery(BaseModel):
    imports: List[
        Annotated[str, BeforeValidator(complement_imports), Field(default_factory=List)]
    ]
    subquery: str = Field(...)