array(8) {
  ["thumbnail"]=>
  array(3) {
    ["width"]=>
    string(3) "350"
    ["height"]=>
    string(3) "350"
    ["crop"]=>
    bool(true)
  }
  ["medium"]=>
  array(3) {
    ["width"]=>
    string(3) "300"
    ["height"]=>
    string(3) "300"
    ["crop"]=>
    bool(false)
  }
  ["medium_large"]=>
  array(3) {
    ["width"]=>
    string(3) "768"
    ["height"]=>
    string(1) "0"
    ["crop"]=>
    bool(false)
  }
  ["large"]=>
  array(3) {
    ["width"]=>
    string(4) "1024"
    ["height"]=>
    string(4) "1024"
    ["crop"]=>
    bool(false)
  }
  ["1536x1536"]=>
  array(3) {
    ["width"]=>
    int(1536)
    ["height"]=>
    int(1536)
    ["crop"]=>
    bool(false)
  }
  ["2048x2048"]=>
  array(3) {
    ["width"]=>
    int(2048)
    ["height"]=>
    int(2048)
    ["crop"]=>
    bool(false)
  }
  ["post-thumbnail"]=>
  array(3) {
    ["width"]=>
    int(672)
    ["height"]=>
    int(372)
    ["crop"]=>
    bool(true)
  }
  ["twentyfourteen-full-width"]=>
  array(3) {
    ["width"]=>
    int(1038)
    ["height"]=>
    int(576)
    ["crop"]=>
    bool(true)
  }
}