impl_dataclass.py

from typing import Optional
from dataclasses import dataclass


@dataclass
class Position:
    longitude: float
    latitude: float
    address: Optional[str] = None

      
pos1 = Position(49.0127913, 8.4231381, "Parkstraße 17")
pos2 = Position(42.1238762, 9.1649964, None)


def get_distance(p1: Position, p2: Position) -> float:
    pass