from pydantic import BaseModel
from typing import Optional, List, Any, Generic, TypeVar

T = TypeVar('T')

class PageParams(BaseModel):
    """分页参数"""
    page: int = 1
    page_size: int = 20

class PageResponse(BaseModel, Generic[T]):
    """分页响应"""
    total: int
    page: int
    page_size: int
    items: List[T]

class BatchImportResponse(BaseModel):
    """批量导入响应"""
    success: bool
    total: int
    inserted: int
    skipped: int
    skipped_ids: List[str] = []
    message: str