fix: Pass along model version in GenerateContentResponse (#621)

* fix: Pass along model_version in GenerateContentResponse.

* Revert autogenerated doc files from 94eb16e.

* Fix 'argument list too long' error and add couple vision examples (#634)

* Update google-ai-generativelanguage version in requirements.

* Format updated generation_types and test using black.

---------

Co-authored-by: Vishal Dharmadhikari <61256217+vishal-dharm@users.noreply.github.com>

Author: Annhiluc

google/generativeai/types/generation_types.py

@@ -359,10 +359,16 @@ def _join_chunks(chunks: Iterable[protos.GenerateContentResponse]):
     else:
         usage_metadata = None
 
+    if "model_version" in chunks[-1]:
+        model_version = chunks[-1].model_version
+    else:
+        model_version = None
+
     return protos.GenerateContentResponse(
         candidates=_join_candidate_lists(c.candidates for c in chunks),
         prompt_feedback=_join_prompt_feedbacks(c.prompt_feedback for c in chunks),
         usage_metadata=usage_metadata,
+        model_version=model_version,
     )
 
 
@@ -539,6 +545,10 @@ def prompt_feedback(self):
     def usage_metadata(self):
         return self._result.usage_metadata
 
+    @property
+    def model_version(self):
+        return self._result.model_version
+
     def __str__(self) -> str:
         if self._done:
             _iterator = "None"

setup.py

@@ -42,7 +42,7 @@ def get_version():
     release_status = "Development Status :: 5 - Production/Stable"
 
 dependencies = [
-    "google-ai-generativelanguage==0.6.10",
+    "google-ai-generativelanguage==0.6.13",
     "google-api-core",
     "google-api-python-client",
     "google-auth>=2.15.0",  # 2.15 adds API key auth support

tests/test_generation.py

@@ -493,6 +493,8 @@ def test_join_chunks(self):
             prompt_token_count=5
         )
 
+        chunks[-1].model_version = "gemini-1.5-flash-002"
+
         result = generation_types._join_chunks(chunks)
 
         expected = protos.GenerateContentResponse(
@@ -509,6 +511,7 @@ def test_join_chunks(self):
                     ],
                 },
                 "usage_metadata": {"prompt_token_count": 5},
+                "model_version": "gemini-1.5-flash-002",
             },
         )