@Override
    public String toString() {
        StringBuilder sb = new StringBuilder();
        sb.append("{");
        if (getInboxPercentage() != null)
            sb.append("InboxPercentage: ").append(getInboxPercentage()).append(",");
        if (getSpamPercentage() != null)
            sb.append("SpamPercentage: ").append(getSpamPercentage()).append(",");
        if (getMissingPercentage() != null)
            sb.append("MissingPercentage: ").append(getMissingPercentage()).append(",");
        if (getSpfPercentage() != null)
            sb.append("SpfPercentage: ").append(getSpfPercentage()).append(",");
        if (getDkimPercentage() != null)
            sb.append("DkimPercentage: ").append(getDkimPercentage());
        sb.append("}");
        return sb.toString();
    }
Returns a string representation of this object. This is useful for testing and debugging. Sensitive data will be
redacted from this string using a placeholder value.

@return A string representation of this object.

@see java.lang.Object#toString()
aws-java-sdk-sesv2/src/main/java/com/amazonaws/services/simpleemailv2/model/PlacementStatistics.java