I am trying the Raptor pack with custom LLM and Embedding model import using langchain. and getting this error . Any ideas? File ~/Documents/ai/.venv/lib/python3.10/site-packages/llama_index/core/indices/prompt_helper.py:117, in PromptHelper.from_llm_metadata(cls, llm_metadata, chunk_overlap_ratio, chunk_size_limit, tokenizer, separator) 103 @classmethod 104 def from_llm_metadata( 105 cls, (...) 110 separator: str = " ", 111 ) -> "PromptHelper": 112 """Create from llm predictor. 113 114 This will autofill values like context_window and num_output. 115 116 """ --> 117 context_window = llm_metadata.context_window 119 if llm_metadata.num_output == -1: 120 num_output = DEFAULT_NUM_OUTPUTS
AttributeError: 'NoneType' object has no attribute 'context_window'
I am trying to use the LLM and Embedding from Oracle Cloud to build a demo. Is there a native way to import the LLM with llamaindex? Or i need to use langchain?