Working around implicit conversions [typescript] - Typescript to Python field guide

workAround.ts

type Celsius = {
  type: "celsius";
  value: number;
};

const celsius = (value: number): Celsius => ({
  value,
  type: "celsius",
});

type Fahrenheit = {
  type: "fahrenheit";
  value: number;
};

const fahrenheit = (value: number): Fahrenheit => ({
  value,
  type: "fahrenheit",
});

type Temperature = Celsius | Fahrenheit;

function convertToCelsius(value: Fahrenheit): Celsius {
  return celsius((value.value * 9) / 5 + 32);
}

function convertToFahrenheit(value: Celsius): Fahrenheit {
  return fahrenheit(((value.value - 32) * 5) / 9);
}

const converted = convertToCelsius(0); // Argument of type '0' is not assignable to parameter of type 'Fahrenheit'
const fahrenheitValue: Fahrenheit = fahrenheit(32);
convertToFahrenheit(fahrenheitValue); // Argument of type 'Fahrenheit' is not assignable to parameter of type 'Celsius'.