CVVComponentConfig 
  constructor(cardScheme: CardScheme = CardScheme.UNKNOWN, onCVVValueChange: (isEnteredCVVValid: Boolean) -> Unit, cvvInputFieldStyle: InputFieldStyle = DefaultCVVInputFieldStyle.create())
Parameters
cardScheme 
- to validate entered CVV is valid or not in the SDK 
onCVVValueChange  
- provides the isEnteredCVVValid for the given card scheme So, based on isEnteredCVVValid value developer can decide to hit the tokenization for CVV component 
cvvInputFieldStyle   
- InputFieldStyle represent the input-field style for CVV Component