[Question] Lost units in JSON about ts-units HOT 2 CLOSED

const quantity1 = grams(1);
const quantity2 = kilograms(1);

// Result: {"amount":"1","dimension":{"mass":1}}

QuantityImpl {
amount: 1,
unit: [Function: makeQuantity] UnitImpl {
  symbol: ' g',
  dimension: { mass: 1 },
  scale: 0.001,
  offset: 0,
  arithmetic: {
    from: [Function: from],
    toNative: [Function: toNative],
    add: [Function: add],
    sub: [Function: sub],
    mul: [Function: mul],
    div: [Function: div],
    pow: [Function: pow],
    abs: [Function: abs],
    compare: [Function: compare]
  }
},
dimension: { mass: 1 }
}

QuantityImpl {
amount: 1,
unit: [Function: makeQuantity] UnitImpl {
  symbol: ' kg',
  dimension: { mass: 1 },
  scale: 1,
  offset: 0,
  arithmetic: {
    from: [Function: from],
    toNative: [Function: toNative],
    add: [Function: add],
    sub: [Function: sub],
    mul: [Function: mul],
    div: [Function: div],
    pow: [Function: pow],
    abs: [Function: abs],
    compare: [Function: compare]
  }
},
dimension: { mass: 1 }
}

{
  amount: number;
  symbol: string
}

// Trivial implementation
if (symbol === 'g') {
  return grams(amount)
} else if () {
}