如何重写pydantic模型的验证消息

import pydantic

class MyModel(pydantic.BaseModel):
    name: str = pydantic.Field(..., description="Name of the user", min_length=3, max_length=50, error_messages={
        "value_error.any_str.min_length": "Name should have at least 3 characters",
        "value_error.any_str.max_length": "Name should have at most 50 characters"
    })
    age: int = pydantic.Field(..., description="Age of the user", ge=18, le=99, error_messages={
        "value_error.number.not_ge": "Age should be greater than or equal to 18",
        "value_error.number.not_le": "Age should be less than or equal to 99"
    })

    @pydantic.validator("age")
    def validate_age(cls, age):
        if age < 18:
            raise ValueError("Age should be greater than or equal to 18")
        return age