Input$WalletTopupPrelevelQualitativeInput constructor
      
      Input$WalletTopupPrelevelQualitativeInput({ 
    
    
- double? amount,
Implementation
factory Input$WalletTopupPrelevelQualitativeInput({double? amount}) =>
    Input$WalletTopupPrelevelQualitativeInput._({
      if (amount != null) r'amount': amount,
    });