# Untitled object in TypeDeclaration Schema

```txt
https://amazonalexa.com/ask/2020/12/TypeDeclaration#/properties/properties/items
```



| Abstract            | Extensible | Status         | Identifiable | Custom Properties | Additional Properties | Access Restrictions | Defined In                                                                          |
| :------------------ | :--------- | :------------- | :----------- | :---------------- | :-------------------- | :------------------ | :---------------------------------------------------------------------------------- |
| Can be instantiated | No         | Unknown status | No           | Forbidden         | Allowed               | none                | [TypeDeclaration.json\*](../../schemas/TypeDeclaration.json "open original schema") |

## items Type

`object` ([Details](typedeclaration-properties-properties-items.md))

# items Properties

| Property                    | Type      | Required | Nullable       | Defined by                                                                                                                                                                                         |
| :-------------------------- | :-------- | :------- | :------------- | :------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| [name](#name)               | `string`  | Required | cannot be null | [TypeDeclaration](genericargumentsdeclaration-items-properties-name.md "https://amazonalexa.com/ask/2020/12/Name#/properties/properties/items/properties/name")                                    |
| [type](#type)               | `object`  | Required | cannot be null | [TypeDeclaration](actiondeclaration-properties-typereference.md "https://amazonalexa.com/ask/2020/12/TypeReference#/properties/properties/items/properties/type")                                  |
| [optional](#optional)       | `boolean` | Optional | cannot be null | [TypeDeclaration](typedeclaration-properties-properties-items-properties-optional.md "https://amazonalexa.com/ask/2020/12/TypeDeclaration#/properties/properties/items/properties/optional")       |
| [annotations](#annotations) | `array`   | Optional | cannot be null | [TypeDeclaration](typedeclaration-properties-properties-items-properties-annotations.md "https://amazonalexa.com/ask/2020/12/TypeDeclaration#/properties/properties/items/properties/annotations") |

## name

A name.

`name`

*   is required

*   Type: `string` ([Name](genericargumentsdeclaration-items-properties-name.md))

*   cannot be null

*   defined in: [TypeDeclaration](genericargumentsdeclaration-items-properties-name.md "https://amazonalexa.com/ask/2020/12/Name#/properties/properties/items/properties/name")

### name Type

`string` ([Name](genericargumentsdeclaration-items-properties-name.md))

### name Constraints

**pattern**: the string must match the following regular expression: 

```regexp
^[a-zA-Z_][a-zA-Z0-9_]*$
```

[try pattern](https://regexr.com/?expression=%5E%5Ba-zA-Z_%5D%5Ba-zA-Z0-9_%5D*%24 "try regular expression with regexr.com")

### name Examples

```json
"foo"
```

```json
"bar"
```

```json
"person"
```

```json
"foo1"
```

## type

The representation of a reference to a type declaration.

`type`

*   is required

*   Type: `object` ([TypeReference](actiondeclaration-properties-typereference.md))

*   cannot be null

*   defined in: [TypeDeclaration](actiondeclaration-properties-typereference.md "https://amazonalexa.com/ask/2020/12/TypeReference#/properties/properties/items/properties/type")

### type Type

`object` ([TypeReference](actiondeclaration-properties-typereference.md))

## optional

Indicates whether the property is required in expressions of this type.

`optional`

*   is optional

*   Type: `boolean`

*   cannot be null

*   defined in: [TypeDeclaration](typedeclaration-properties-properties-items-properties-optional.md "https://amazonalexa.com/ask/2020/12/TypeDeclaration#/properties/properties/items/properties/optional")

### optional Type

`boolean`

## annotations



`annotations`

*   is optional

*   Type: `object[]` ([Call](actiondeclaration-properties-annotations-call.md))

*   cannot be null

*   defined in: [TypeDeclaration](typedeclaration-properties-properties-items-properties-annotations.md "https://amazonalexa.com/ask/2020/12/TypeDeclaration#/properties/properties/items/properties/annotations")

### annotations Type

`object[]` ([Call](actiondeclaration-properties-annotations-call.md))