You are coding the wrong way in Python if you aren't using these two libraries

int_typed:int = 4

float_typed:float = 1.2

string_typed:str = "hello"

from typing import List
int_typed_list:List[int] = []

from typing import Any, List

int_typed:int = 4

float_typed:float = 1.2

string_typed:str = "hello"

int_typed_list:List[int] = []

int_typed_list.append(int_typed)

any_typed_list: List[Any] = []
any_typed_list.append(int_typed)
any_typed_list.append(string_typed)
any_typed_list.append(float_typed)
any_typed_list.append(int_typed_list)

from typing import Dict

x: Dict[str, int] = {'followers': 1110} 

x['abc'] = 123

x.keys()

x.values()

def get_avg(num1:int, num2:int) -> float:
    return (num1+num2)/2

get_avg(12,9)

import math as m

class Vector:
    def __init__(self, x:float,y:float) -> None:
        self.x = x
        self.y = y

    def calculate_magnitude(self) -> float:
        return m.sqrt(m.pow(self.x,2)+ m.pow(self.y,2))

v = Vector(1,1)