Update hgncgenefamily.py

Author: cthoyt

src/pyobo/sources/hgnc/hgncgenefamily.py

@@ -12,10 +12,10 @@
 from ...utils.path import ensure_df
 
 __all__ = [
+    "GENE_GROUP_REFERENCE",
+    "GENE_GROUP_TERM",
     "HGNCGroupGetter",
     "get_gene_family_terms",
-    "GENE_GROUP_TERM",
-    "GENE_GROUP_REFERENCE",
 ]
 
 PREFIX = "hgnc.genegroup"
@@ -53,6 +53,7 @@ def get_hierarchy(*, version: str | None = None, force: bool = False) -> Mapping
 GENE_GROUP_REFERENCE = Reference(prefix="SO", identifier="0005855", name="gene group")
 GENE_GROUP_TERM = Term(reference=GENE_GROUP_REFERENCE)
 
+
 def get_gene_family_terms(*, version: str | None = None, force: bool = False) -> Iterable[Term]:
     """Get the HGNC Gene Group terms."""
     if version is None: