Use this method to upload a .PNG file with a sticker for later use in createNewStickerSet and addStickerToSet methods (can be used multiple times). Returns the uploaded File on success.
| `user_id` | `#!python3 int` | User identifier of sticker file owner |
| `png_sticker` | `#!python3 InputFile` | Png image with the sticker, must be up to 512 kilobytes in size, dimensions must not exceed 512px, and either width or height must be exactly 512px. |
## Response
Type: `#!python3 File`
Description: Returns the uploaded File on success.