use array instead of image

anansyTypes/structures/symbol.py

@@ -1,10 +1,12 @@
 from dataclasses import dataclass
 from typing import Optional
-from PIL import Image
-
-
+import numpy as np
+from pydantic_tensor import Tensor
+from typing import Any, Literal
+import torch
 @dataclass
 class Symbol:
     id: int
     label: str
-    image: Optional[Image.Image]
+    image: Tensor[ np.ndarray[Any, Any],tuple, Literal["int32", "int64"]]
+