Add support for anthropic (#1819)

mem0/llms/litellm.py

@@ -6,16 +6,7 @@ from typing import Dict, List, Optional
 try:
     import litellm
 except ImportError:
-    user_input = input("The 'litellm' library is required. Install it now? [y/N]: ")
-    if user_input.lower() == 'y':
-        try:
-            subprocess.check_call([sys.executable, "-m", "pip", "install", "litellm"])
-            import litellm
-        except subprocess.CalledProcessError:
-            print("Failed to install 'litellm'. Please install it manually using 'pip install litellm'.")
-            sys.exit(1)
-    else:
-        raise ImportError("The required 'litellm' library is not installed.")
+    raise ImportError("The 'litellm' library is required. Please install it using 'pip install litellm'.")
 
 from mem0.llms.base import LLMBase
 from mem0.configs.llms.base import BaseLlmConfig
@@ -91,7 +82,7 @@ class LiteLLM(LLMBase):
         }
         if response_format:
             params["response_format"] = response_format
-        if tools:
+        if tools: # TODO: Remove tools if no issues found with new memory addition logic
             params["tools"] = tools
             params["tool_choice"] = tool_choice