@Override
    public String toString() {
        StringBuilder sb = new StringBuilder();
        sb.append("{");
        if (getToKey() != null)
            sb.append("ToKey: ").append(getToKey()).append(",");
        if (getFromPath() != null)
            sb.append("FromPath: ").append(getFromPath()).append(",");
        if (getFromType() != null)
            sb.append("FromType: ").append(getFromType()).append(",");
        if (getToType() != null)
            sb.append("ToType: ").append(getToType()).append(",");
        if (getDropped() != null)
            sb.append("Dropped: ").append(getDropped()).append(",");
        if (getChildren() != null)
            sb.append("Children: ").append(getChildren());
        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-glue/src/main/java/com/amazonaws/services/glue/model/Mapping.java