public SystemTemplateDescription withDefinition(DefinitionDocument definition) {
        setDefinition(definition);
        return this;
    }
<p>
The definition document of a system.
</p>

@param definition
       The definition document of a system.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-iotthingsgraph/src/main/java/com/amazonaws/services/iotthingsgraph/model/SystemTemplateDescription.java