from pydantic import BaseSettings, Field

from pydantic_settings import BaseSettings
from pydantic import Field

    db_dsn: str = Field(..., env='DB_DSN')
    db_name: str = Field(default="ptc", env='DB_NAME')

    db_dsn: str = Field(..., env="DB_DSN")
    db_name: str = Field(default="ptc", env="DB_NAME")