@Override
    public String toString() {
        StringBuilder sb = new StringBuilder();
        sb.append("{");
        if (getTtl() != null)
            sb.append("Ttl: ").append(getTtl()).append(",");
        if (getApiCachingBehavior() != null)
            sb.append("ApiCachingBehavior: ").append(getApiCachingBehavior()).append(",");
        if (getTransitEncryptionEnabled() != null)
            sb.append("TransitEncryptionEnabled: ").append(getTransitEncryptionEnabled()).append(",");
        if (getAtRestEncryptionEnabled() != null)
            sb.append("AtRestEncryptionEnabled: ").append(getAtRestEncryptionEnabled()).append(",");
        if (getType() != null)
            sb.append("Type: ").append(getType()).append(",");
        if (getStatus() != null)
            sb.append("Status: ").append(getStatus()).append(",");
        if (getHealthMetricsConfig() != null)
            sb.append("HealthMetricsConfig: ").append(getHealthMetricsConfig());
        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-appsync/src/main/java/com/amazonaws/services/appsync/model/ApiCache.java