toJson method

Implementation

@override
Object toJson() => {
  if (totalTokens.isNotDefault) 'totalTokens': totalTokens,
  if (totalBillableCharacters.isNotDefault)
    'totalBillableCharacters': totalBillableCharacters,
  if (promptTokensDetails.isNotDefault)
    'promptTokensDetails': [for (final i in promptTokensDetails) i.toJson()],
};