'file' => [], // The file to be attached, using multipart form data.
'thumbnail' => [], // The custom thumbnail of the media to be attached, using multipart form data.
'description' => '', // A plain-text description of the media, for accessibility purposes.
'focus' => '', // Two floating points (x,y), comma-delimited ranging from -1.0 to 1.0
'file' => [], // The file to be attached, using multipart form data.
'thumbnail' => [], // The custom thumbnail of the media to be attached, using multipart form data.
'description' => '', // A plain-text description of the media, for accessibility purposes.
'focus' => '', // Two floating points (x,y), comma-delimited ranging from -1.0 to 1.0