Constructor: photoSizeProgressive
Progressively encoded photosize
Attributes:
| Name | Type | Required | Description | 
|---|---|---|---|
| type | string | Yes | Photosize type » | 
| w | int | Yes | Photo width | 
| h | int | Yes | Photo height | 
| sizes | Array of int | Yes | Sizes of progressive JPEG file prefixes, which can be used to preliminarily show the image. | 
Type: PhotoSize
Example:
 $photoSizeProgressive = ['_' => 'photoSizeProgressive', 'type' => 'string', 'w' => int, 'h' => int, 'sizes' => [int, int]];