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# AWS::IoT::ThingType ThingTypeProperties
<a name="aws-properties-iot-thingtype-thingtypeproperties"></a>

The ThingTypeProperties contains information about the thing type including: a thing type description, and a list of searchable thing attribute names.

## Syntax
<a name="aws-properties-iot-thingtype-thingtypeproperties-syntax"></a>

To declare this entity in your CloudFormation template, use the following syntax:

### JSON
<a name="aws-properties-iot-thingtype-thingtypeproperties-syntax.json"></a>

```
{
  "[Mqtt5Configuration](#cfn-iot-thingtype-thingtypeproperties-mqtt5configuration)" : Mqtt5Configuration,
  "[SearchableAttributes](#cfn-iot-thingtype-thingtypeproperties-searchableattributes)" : [ String, ... ],
  "[ThingTypeDescription](#cfn-iot-thingtype-thingtypeproperties-thingtypedescription)" : String
}
```

### YAML
<a name="aws-properties-iot-thingtype-thingtypeproperties-syntax.yaml"></a>

```
  [Mqtt5Configuration](#cfn-iot-thingtype-thingtypeproperties-mqtt5configuration): 
    Mqtt5Configuration
  [SearchableAttributes](#cfn-iot-thingtype-thingtypeproperties-searchableattributes): 
    - String
  [ThingTypeDescription](#cfn-iot-thingtype-thingtypeproperties-thingtypedescription): String
```

## Properties
<a name="aws-properties-iot-thingtype-thingtypeproperties-properties"></a>

`Mqtt5Configuration`  <a name="cfn-iot-thingtype-thingtypeproperties-mqtt5configuration"></a>
The configuration to add user-defined properties to enrich MQTT 5 messages.  
*Required*: No  
*Type*: [Mqtt5Configuration](aws-properties-iot-thingtype-mqtt5configuration.md)  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`SearchableAttributes`  <a name="cfn-iot-thingtype-thingtypeproperties-searchableattributes"></a>
A list of searchable thing attribute names.  
*Required*: No  
*Type*: Array of String  
*Maximum*: `128 | 3`  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`ThingTypeDescription`  <a name="cfn-iot-thingtype-thingtypeproperties-thingtypedescription"></a>
The description of the thing type.  
*Required*: No  
*Type*: String  
*Pattern*: `[\p{Graph}\x20]*`  
*Maximum*: `2028`  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)