new_contents: import pytest
  from fbchat._sticker import Sticker
  
  
  def test_from_graphql_none():
      assert None == Sticker._from_graphql(None)
  
  
  def test_from_graphql_minimal():
      assert Sticker(uid=1) == Sticker._from_graphql({"id": 1})
  
  
  def test_from_graphql_normal():
      assert Sticker(
          uid="369239383222810",
          pack="227877430692340",
          is_animated=False,
          medium_sprite_image=None,
          large_sprite_image=None,
          frames_per_row=None,
          frames_per_col=None,
          frame_rate=None,
          url="https://scontent-arn2-1.xx.fbcdn.net/v/redacted.png",
          width=274,
          height=274,
          label="Like, thumbs up",
      ) == Sticker._from_graphql(
          {
              "id": "369239383222810",
              "pack": {"id": "227877430692340"},
              "label": "Like, thumbs up",
              "frame_count": 1,
              "frame_rate": 83,
              "frames_per_row": 1,
              "frames_per_column": 1,
              "sprite_image_2x": None,
              "sprite_image": None,
              "padded_sprite_image": None,
              "padded_sprite_image_2x": None,
              "url": "https://scontent-arn2-1.xx.fbcdn.net/v/redacted.png",
              "height": 274,
              "width": 274,
          }
      )
  
  
  def test_from_graphql_animated():
      assert Sticker(
          uid="144885035685763",
          pack="350357561732812",
          is_animated=True,
          medium_sprite_image="https://scontent-arn2-1.xx.fbcdn.net/v/redacted2.png",
          large_sprite_image="https://scontent-arn2-1.fbcdn.net/v/redacted3.png",
          frames_per_row=2,
          frames_per_col=2,
          frame_rate=142,
          url="https://scontent-arn2-1.fbcdn.net/v/redacted1.png",
          width=240,
          height=293,
          label="Love, cat with heart",
      ) == Sticker._from_graphql(
          {
              "id": "144885035685763",
              "pack": {"id": "350357561732812"},
              "label": "Love, cat with heart",
              "frame_count": 4,
              "frame_rate": 142,
              "frames_per_row": 2,
              "frames_per_column": 2,
              "sprite_image_2x": {
                  "uri": "https://scontent-arn2-1.fbcdn.net/v/redacted3.png"
              },
              "sprite_image": {
                  "uri": "https://scontent-arn2-1.xx.fbcdn.net/v/redacted2.png"
              },
              "padded_sprite_image": {
                  "uri": "https://scontent-arn2-1.xx.fbcdn.net/v/unused1.png"
              },
              "padded_sprite_image_2x": {
                  "uri": "https://scontent-arn2-1.xx.fbcdn.net/v/unused2.png"
              },
              "url": "https://scontent-arn2-1.fbcdn.net/v/redacted1.png",
              "height": 293,
              "width": 240,
          }
      )
  
subject: Add sticker tests