Update bigbiohub.py

bigbiohub.py

@@ -6,7 +6,7 @@ from types import SimpleNamespace
 from dataclasses import dataclass
 import datasets
 
-from . licenses import License, Licenses
+import licenses
 
 
 BigBioValues = SimpleNamespace(NULL="<BB_NULL_STR>")
@@ -34,7 +34,7 @@ METADATA: dict = {
     "_LOCAL": bool,
     "_LANGUAGES": Lang,
     "_PUBMED": bool,
-    "_LICENSE": License,
+    "_LICENSE": licenses.License,
     "_DISPLAYNAME": str,
 }