[Home](./index.md) > [puppeteer](./puppeteer.md) > [Protocol](./puppeteer.protocol.md) > [Accessibility](./puppeteer.protocol.accessibility.md) > [AXValueSource](./puppeteer.protocol.accessibility.axvaluesource.md) ## Protocol.Accessibility.AXValueSource interface A single source for a computed AX property. Signature: ```typescript export interface AXValueSource ``` ## Properties | Property | Type | Description | | --- | --- | --- | | [attribute](./puppeteer.protocol.accessibility.axvaluesource.attribute.md) | string | The name of the relevant attribute, if any. | | [attributeValue](./puppeteer.protocol.accessibility.axvaluesource.attributevalue.md) | [AXValue](./puppeteer.protocol.accessibility.axvalue.md) | The value of the relevant attribute, if any. | | [invalid](./puppeteer.protocol.accessibility.axvaluesource.invalid.md) | boolean | Whether the value for this property is invalid. | | [invalidReason](./puppeteer.protocol.accessibility.axvaluesource.invalidreason.md) | string | Reason for the value being invalid, if it is. | | [nativeSource](./puppeteer.protocol.accessibility.axvaluesource.nativesource.md) | [AXValueNativeSourceType](./puppeteer.protocol.accessibility.axvaluenativesourcetype.md) | The native markup source for this value, e.g. a element. | | [nativeSourceValue](./puppeteer.protocol.accessibility.axvaluesource.nativesourcevalue.md) | [AXValue](./puppeteer.protocol.accessibility.axvalue.md) | The value, such as a node or node list, of the native source. | | [superseded](./puppeteer.protocol.accessibility.axvaluesource.superseded.md) | boolean | Whether this source is superseded by a higher priority source. | | [type](./puppeteer.protocol.accessibility.axvaluesource.type.md) | [AXValueSourceType](./puppeteer.protocol.accessibility.axvaluesourcetype.md) | What type of source this is. | | [value](./puppeteer.protocol.accessibility.axvaluesource.value.md) | [AXValue](./puppeteer.protocol.accessibility.axvalue.md) | The value of this property source. |