public void setThingTypeMetadata(ThingTypeMetadata thingTypeMetadata) {
        this.thingTypeMetadata = thingTypeMetadata;
    }
<p>
The ThingTypeMetadata contains additional information about the thing type including: creation date and time, a
value indicating whether the thing type is deprecated, and a date and time when it was deprecated.
</p>

@param thingTypeMetadata
       The ThingTypeMetadata contains additional information about the thing type including: creation date and
       time, a value indicating whether the thing type is deprecated, and a date and time when it was deprecated.
aws-java-sdk-iot/src/main/java/com/amazonaws/services/iot/model/ThingTypeDefinition.java