feat: add support for deepseek-chat

closes #222

scrapegraphai/graphs/abstract_graph.py

@@ -7,7 +7,7 @@ from langchain_openai import AzureOpenAIEmbeddings, OpenAIEmbeddings
 from langchain_community.embeddings import HuggingFaceHubEmbeddings, OllamaEmbeddings, BedrockEmbeddings
 from langchain_google_genai import GoogleGenerativeAIEmbeddings
 from ..helpers import models_tokens
-from ..models import AzureOpenAI, Bedrock, Gemini, Groq, HuggingFace, Ollama, OpenAI, Anthropic, Claude
+from ..models import AzureOpenAI, Bedrock, Gemini, Groq, HuggingFace, Ollama, OpenAI, Anthropic, Claude, DeepSeek
 
 
 class AbstractGraph(ABC):
@@ -200,6 +200,12 @@ class AbstractGraph(ABC):
         elif "claude-3-" in llm_params["model"]:
             self.model_token = models_tokens["claude"]["claude3"]
             return Anthropic(llm_params)
+        elif "deepseek" in llm_params["model"]:
+            try:
+                self.model_token = models_tokens["deepseek"][llm_params["model"]]
+            except KeyError as exc:
+                raise KeyError("Model not supported") from exc
+            return DeepSeek(llm_params)
         else:
             raise ValueError(
                 "Model provided by the configuration not supported")

scrapegraphai/helpers/models_tokens.py

@@ -102,6 +102,12 @@ models_tokens = {
         "cognitivecomputations/dolphin-2.9-llama3-8b-gguf": 8192,
         "cognitivecomputations/dolphin-2.8-mistral-7b-v02": 32768,
         "cognitivecomputations/dolphin-2.5-mixtral-8x7b": 32768,
-        "TheBloke/dolphin-2.7-mixtral-8x7b-GGUF": 32768
+        "TheBloke/dolphin-2.7-mixtral-8x7b-GGUF": 32768,
+        "deepseek-ai/DeepSeek-V2": 131072,
+        "deepseek-ai/DeepSeek-V2-Chat": 131072
+    },
+    "deepseek": {
+        "deepseek-chat": 32768,
+        "deepseek-coder": 16384
     }
 }

scrapegraphai/models/__init__.py

@@ -13,3 +13,4 @@ from .groq import Groq
 from .bedrock import Bedrock
 from .anthropic import Anthropic
 from .claude import Claude
+from .deepseek import DeepSeek

scrapegraphai/models/deepseek.py

@@ -0,0 +1,18 @@
+""" 
+DeepSeek Module
+"""
+from langchain_openai import ChatOpenAI
+
+
+class DeepSeek(ChatOpenAI):
+    """
+    A wrapper for the ChatOpenAI class (DeepSeek uses an OpenAI-like API) that
+    provides default configuration and could be extended with additional methods
+    if needed.
+
+    Args:
+        llm_config (dict): Configuration parameters for the language model.
+    """
+
+    def __init__(self, llm_config: dict):
+        super().__init__(**llm_config)