@Override
    public String toString() {
        StringBuilder sb = new StringBuilder();
        sb.append("{");
        if (getCertificateArn() != null)
            sb.append("CertificateArn: ").append(getCertificateArn()).append(",");
        if (getResourceId() != null)
            sb.append("ResourceId: ").append(getResourceId()).append(",");
        if (getSystemIds() != null)
            sb.append("SystemIds: ").append(getSystemIds()).append(",");
        if (getUrl() != null)
            sb.append("Url: ").append(getUrl());
        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-mediaconvert/src/main/java/com/amazonaws/services/mediaconvert/model/SpekeKeyProvider.java