Tokenization fixed

tokenization_nicheformer.py

@@ -277,6 +277,7 @@ class NicheformerTokenizer(PreTrainedTokenizer):
         """
         if isinstance(data, ad.AnnData):
             adata = data.copy()
+            print("READING")
             print(f"modality dtype: {adata.obs['modality'].dtype}")
             print(f"specie dtype: {adata.obs['specie'].dtype}") 
             print(f"assay dtype: {adata.obs['assay'].dtype}")