Moved back to llm dir as per

https://github.com/HKUDS/LightRAG/pull/864#issuecomment-2669705946

- Created two new example scripts demonstrating LightRAG integration with LlamaIndex:
  - `lightrag_llamaindex_direct_demo.py`: Direct OpenAI integration
  - `lightrag_llamaindex_litellm_demo.py`: LiteLLM proxy integration
- Both examples showcase different search modes (naive, local, global, hybrid)
- Includes configuration for working directory, models, and API settings
- Demonstrates text insertion and querying using LightRAG with LlamaIndex
- removed wrapper directory and references to it

examples/lightrag_llamaindex_direct_demo.py

@@ -1,6 +1,6 @@
 import os
 from lightrag import LightRAG, QueryParam
-from lightrag.wrapper.llama_index_impl import (
+from lightrag.llm.llama_index_impl import (
     llama_index_complete_if_cache,
     llama_index_embed,
 )
@@ -10,14 +10,13 @@ from llama_index.embeddings.openai import OpenAIEmbedding
 import asyncio
 
 # Configure working directory
-DEFAULT_RAG_DIR = "index_default"
+WORKING_DIR = "./index_default"
-WORKING_DIR = os.environ.get("RAG_DIR", f"{DEFAULT_RAG_DIR}")
 print(f"WORKING_DIR: {WORKING_DIR}")
 
 # Model configuration
 LLM_MODEL = os.environ.get("LLM_MODEL", "gpt-4")
 print(f"LLM_MODEL: {LLM_MODEL}")
-EMBEDDING_MODEL = os.environ.get("EMBEDDING_MODEL", "text-embedding-3-small")
+EMBEDDING_MODEL = os.environ.get("EMBEDDING_MODEL", "text-embedding-3-large")
 print(f"EMBEDDING_MODEL: {EMBEDDING_MODEL}")
 EMBEDDING_MAX_TOKEN_SIZE = int(os.environ.get("EMBEDDING_MAX_TOKEN_SIZE", 8192))
 print(f"EMBEDDING_MAX_TOKEN_SIZE: {EMBEDDING_MAX_TOKEN_SIZE}")
@@ -26,6 +25,7 @@ print(f"EMBEDDING_MAX_TOKEN_SIZE: {EMBEDDING_MAX_TOKEN_SIZE}")
 OPENAI_API_KEY = os.environ.get("OPENAI_API_KEY", "your-api-key-here")
 
 if not os.path.exists(WORKING_DIR):
+    print(f"Creating working directory: {WORKING_DIR}")
     os.mkdir(WORKING_DIR)
 
 

examples/lightrag_llamaindex_litellm_demo.py

@@ -1,6 +1,6 @@
 import os
 from lightrag import LightRAG, QueryParam
-from lightrag.wrapper.llama_index_impl import (
+from lightrag.llm.llama_index_impl import (
     llama_index_complete_if_cache,
     llama_index_embed,
 )
@@ -10,14 +10,13 @@ from llama_index.embeddings.litellm import LiteLLMEmbedding
 import asyncio
 
 # Configure working directory
-DEFAULT_RAG_DIR = "index_default"
+WORKING_DIR = "./index_default"
-WORKING_DIR = os.environ.get("RAG_DIR", f"{DEFAULT_RAG_DIR}")
 print(f"WORKING_DIR: {WORKING_DIR}")
 
 # Model configuration
-LLM_MODEL = os.environ.get("LLM_MODEL", "gpt-4o")
+LLM_MODEL = os.environ.get("LLM_MODEL", "gpt-4")
 print(f"LLM_MODEL: {LLM_MODEL}")
-EMBEDDING_MODEL = os.environ.get("EMBEDDING_MODEL", "embedding-model")
+EMBEDDING_MODEL = os.environ.get("EMBEDDING_MODEL", "text-embedding-3-large")
 print(f"EMBEDDING_MODEL: {EMBEDDING_MODEL}")
 EMBEDDING_MAX_TOKEN_SIZE = int(os.environ.get("EMBEDDING_MAX_TOKEN_SIZE", 8192))
 print(f"EMBEDDING_MAX_TOKEN_SIZE: {EMBEDDING_MAX_TOKEN_SIZE}")