Inclusion of Claude and Cohere to the panel

ring.py

@@ -1,6 +1,8 @@
 import os
 from getpass import getpass
 from langchain_ai21 import AI21LLM
+from langchain_anthropic import AnthropicLLM
+from langchain_cohere import Cohere
 from langchain_openai import OpenAI
 
 from langchain.prompts import PromptTemplate
@@ -13,10 +15,12 @@ LLM_GPT4o = "GPT4o"
 LLM_LLAMA2 = "LLAMA2"
 LLM_GEMINI = "Gemini"
 LLM_AI21 = "AI21"
+LLM_Claude2 = "Claude2.1"
+LLM_Cohere = "Cohere"
 
 OPENAI_LLMS = [LLM_GPT35, LLM_GPT4, LLM_GPT4o]
 
-PREF_ORDER_LLMS = (LLM_GEMINI, LLM_LLAMA2, LLM_GPT35, LLM_GPT4, LLM_GPT4o, LLM_AI21)
+PREF_ORDER_LLMS = (LLM_GEMINI, LLM_LLAMA2, LLM_GPT35, LLM_GPT4, LLM_GPT4o, LLM_AI21, LLM_Claude2, LLM_Cohere)
 
 
 def requires_openai_key(llm_ver):
@@ -55,6 +59,18 @@ def get_ai21_api_key():
 
     return ai21_api_key
 
+def get_claude_key():
+
+    claude_api_key = os.environ.get["CLAUDE_API_KEY"]
+
+    return claude_api_key
+
+def get_cohere_key():
+
+    cohere_api_key = os.environ.get["COHERE_API_KEY"]
+
+    return cohere_api_key
+
 def get_llm(llm_ver, temperature):
 
     if llm_ver == LLM_GPT35:
@@ -109,6 +125,22 @@ def get_llm(llm_ver, temperature):
             model="j2-ultra"
         )
 
+    elif llm_ver == LLM_Claude2:
+
+        from langchain_anthropic import AnthropicLLM
+
+        llm = Anthropic(
+            model="claude-2.1"
+        )
+    
+    elif llm_ver == LLM_Cohere:
+
+        from langchain_cohere import Cohere
+
+        llm = Cohere(
+            model = "Cohere Command R" #double check
+        )
+    
     return llm