src/models/Plan_model.py

from pydantic import BaseModel,Field
from typing import List,Literal
from src.models.Task_models import Task

class Plan(BaseModel):
    blog_title: str
    audience: str = Field(..., description="Who this blog is for.")
    tone: str = Field(..., description="Writing tone (e.g., practical, crisp).")
    blog_kind: Literal["explainer", "tutorial", "news_roundup", "comparison", "system_design"] = "explainer"
    constraints: List[str] = Field(default_factory=list)
    tasks: List[Task]