Structural Typing Zur Hilfe

    class CreditRiskIndicators (val ead: Double) {}
    
    abstract class FinancialInstrument {  def getCreditRiskIndicators() : CreditRiskIndicators  }
    abstract class Account {  def getCreditRiskIndicators() : CreditRiskIndicators  }
    abstract class Position {  def getCreditRiskIndicators() : CreditRiskIndicators  }