feat: Fix bug for gemini case when embeddings config not passed

Author: shkamboj1

scrapegraphai/graphs/abstract_graph.py

@@ -46,7 +46,7 @@ def __init__(self, prompt: str, config: dict, source: Optional[str] = None):
         self.source = source
         self.config = config
         self.llm_model = self._create_llm(config["llm"], chat=True)
-        self.embedder_model = self._create_default_embedder(
+        self.embedder_model = self._create_default_embedder(llm_config=config["llm"]
         ) if "embeddings" not in config else self._create_embedder(
             config["embeddings"])
 
@@ -91,6 +91,13 @@ def _set_model_token(self, llm):
                     self.model_token = models_tokens['mistral'][llm.repo_id]
                 except KeyError:
                     raise KeyError("Model not supported")
+                
+        elif 'Google' in str(type(llm)):
+            try:
+                if 'gemini' in llm.model:
+                    self.model_token = models_tokens['gemini'][llm.model]
+            except KeyError:
+                raise KeyError("Model not supported")
 
     def _create_llm(self, llm_config: dict, chat=False) -> object:
         """
@@ -197,7 +204,7 @@ def _create_llm(self, llm_config: dict, chat=False) -> object:
             raise ValueError(
                 "Model provided by the configuration not supported")
 
-    def _create_default_embedder(self) -> object:
+    def _create_default_embedder(self, llm_config=None) -> object:
         """
         Create an embedding model instance based on the chosen llm model.
 
@@ -207,6 +214,8 @@ def _create_default_embedder(self) -> object:
         Raises:
             ValueError: If the model is not supported.
         """
+        if isinstance(self.llm_model, Gemini):
+            return GoogleGenerativeAIEmbeddings(google_api_key=llm_config['api_key'], model="models/embedding-001")
         if isinstance(self.llm_model, OpenAI):
             return OpenAIEmbeddings(api_key=self.llm_model.openai_api_key)
         elif isinstance(self.llm_model, AzureOpenAIEmbeddings):
@@ -241,7 +250,6 @@ def _create_embedder(self, embedder_config: dict) -> object:
         Raises:
             KeyError: If the model is not supported.
         """
-
         if 'model_instance' in embedder_config:
             return embedder_config['model_instance']
         # Instantiate the embedding model based on the model name

scrapegraphai/helpers/models_tokens.py

@@ -26,6 +26,7 @@
     },
     "gemini": {
         "gemini-pro": 128000,
+        "models/embedding-001": 2048
     },
 
     "ollama": {