Inclusion of AI21 into board of panellists

ring.py

@@ -1,5 +1,6 @@
 import os
-
+from getpass import getpass
+from langchain_ai21 import AI21LLM
 from langchain_openai import OpenAI
 
 from langchain.prompts import PromptTemplate
@@ -11,10 +12,11 @@ LLM_GPT4 = "GPT4"
 LLM_GPT4o = "GPT4o"
 LLM_LLAMA2 = "LLAMA2"
 LLM_GEMINI = "Gemini"
+LLM_AI21 = "AI21"
 
 OPENAI_LLMS = [LLM_GPT35, LLM_GPT4, LLM_GPT4o]
 
-PREF_ORDER_LLMS = (LLM_GEMINI, LLM_LLAMA2, LLM_GPT35, LLM_GPT4, LLM_GPT4o)
+PREF_ORDER_LLMS = (LLM_GEMINI, LLM_LLAMA2, LLM_GPT35, LLM_GPT4, LLM_GPT4o, AI21)
 
 
 def requires_openai_key(llm_ver):
@@ -47,6 +49,11 @@ def get_gemini_api_key():
 
     return gemini_api_key
 
+def get_ai21_api_key():
+    
+    ai21_api_key = os.environ.get["AI21_API_KEY"]
+
+    return ai21_api_key
 
 def get_llm(llm_ver, temperature):