transformers gguf esper dev-ops developer code code-instruct valiant valiant-labs code-llama llama llama-2 llama-2-chat 70b text-generation en base_model:ValiantLabs/CodeLlama-70B-Esper base_model:quantized:ValiantLabs/CodeLlama-70B-Esper license:apache-2.0 endpoints_compatible region:us conversational