Telegex.set_sticker_set_thumb

You're seeing just the function set_sticker_set_thumb, go back to Telegex module for more information.
Link to this function

set_sticker_set_thumb(sticker, user_id, optionals \\ [])

View Source

Specs

set_sticker_set_thumb(String.t(), integer(), [
  {:thumb, Telegex.Model.InputFile.t() | String.t()}
]) :: {:ok, boolean()} | {:error, Telegex.Model.errors()}

Use this method to set the thumbnail of a sticker set. Animated thumbnails can be set for animated sticker sets only. Returns True on success.