Implicit vs Explicit typing [python] - Typescript to Python field guide

person.py

from typing import Sequence
from dataclasses import dataclass
@dataclass
class Person:
    name: str
    age: int
    height: float
    friends: Sequence[Person]

# in Python, unless using Protocols, variables must implement types explicitly
jane = Person(
    name="Jane",
    age=25,
    height=1.74,
    friends=[]

)

tim = Person(
    name="Tim",
    age=23,
    height=1.71,
    friends=[jane]
)