AXValueSource(type: AXValueSourceType, value: AXValue? = null, attribute: String? = null, attributeValue: AXValue? = null, superseded: Boolean? = null, nativeSource: AXValueNativeSourceType? = null, nativeSourceValue: AXValue? = null, invalid: Boolean? = null, invalidReason: String? = null)
A single source for a computed AX property.