Array
(
    [thumbnail] => Array
        (
            [width] => 256
            [height] => 256
            [crop] => 
        )

    [medium] => Array
        (
            [width] => 768
            [height] => 768
            [crop] => 
        )

    [large] => Array
        (
            [width] => 1536
            [height] => 1536
            [crop] => 
        )

)
1