thumbnail property
read / write
Sticker set thumbnail in WEBP, TGS, or WEBM format with width and height 100; may be null. The file can be downloaded only before the thumbnail is changed.
Implementation
Thumbnail? thumbnail;Sticker set thumbnail in WEBP, TGS, or WEBM format with width and height 100; may be null. The file can be downloaded only before the thumbnail is changed.
Thumbnail? thumbnail;