@JsonSetter("purchase_history")
    public void setPurchaseHistory (List<PurchaseInfo> value) { 
        this.purchaseHistory = value;
    }
@JsonSetter("purchase_history")
    public void setPurchaseHistory (List<PurchaseInfo> value) { 
        this.purchaseHistory = value;
    }
@jsonsetter("purchase_history") public void setpurchasehistory (list<purchaseinfo> value) { this.purchasehistory = value; }