Improve performance of AnyVar.put_object() by eliminating unnecessary…

… digest computation (#73)

* Return digest from vrs_enref instead of recomputing

* Removed unused import

* Bump ga4gh.vrs dependency version to 2.0.0a2

* Change unused var name to "_"

Co-authored-by: Kori Kuzma <korikuzma@gmail.com>

---------

Co-authored-by: Kori Kuzma <korikuzma@gmail.com>

src/anyvar/anyvar.py

@@ -9,7 +9,6 @@
 from typing import Optional
 from urllib.parse import urlparse
 
-from ga4gh.core import ga4gh_identify
 from ga4gh.vrs import vrs_deref, vrs_enref
 
 from anyvar.storage import DEFAULT_STORAGE_URI, _Storage
@@ -83,10 +82,10 @@ def put_object(self, variation_object: VrsObject) -> Optional[str]:
         :return: Object digest if successful, None otherwise
         """
         try:
-            v = vrs_enref(variation_object, self.object_store)
+            id, _ = vrs_enref(variation_object, self.object_store, True)
         except ValueError:
             return None
-        return ga4gh_identify(v)
+        return id
 
     def get_object(self, object_id: str, deref: bool = False) -> Optional[VrsObject]:
         """Retrieve registered variation.