I am use ragas for measuring the llm response. But facing problem in llama_index modules import.

from ragas.langchain.evalchain import RagasEvaluatorChain
from ragas.llama_index import evaluate

throw error because of this

try:
from llama_index.async_utils import run_async_tasks
except ImportError:
raise ImportError(
“llama_index must be installed to use this function. ”
“Please, install it with pip install llama_index.”
)

I am expecting to remove the import error