added comment

Author: felix314159

src/ethereum_test_types/transaction_types.py

@@ -696,7 +696,8 @@ def proofs(self) -> Sequence[Bytes] | None:
         return proofs
 
     # original cell proofs with length 4098
-    # error: Invalid RLP.
+    # error: InvalidBlobDataSize: Blob data fields are of incorrect size.
+    #   -> i think its cuz each cell_proof has length 4098, but for some reason it wants length 98 (but ofc if we just shorten it it will expect a different proof)
     @computed_field  # type: ignore[prop-decorator]
     @property
     def cell_proofs(self) -> Sequence[Sequence[Bytes]] | Sequence[Bytes] | None:
@@ -709,9 +710,9 @@ def cell_proofs(self) -> Sequence[Sequence[Bytes]] | Sequence[Bytes] | None:
             assert isinstance(blob.cells, list)
             cells.append(blob.cells)
 
-        # maybe remove below
-        # if len(cells) == 1:
-        #     return cells[0]
+        # if you remove below you instead get error: Invalid RLP. (which means getting what we have to work NWT that hold many blobs will be even more work)  # noqa: E501
+        if len(cells) == 1:
+            return cells[0]
 
         return cells