Querying Llama3 70b using BedrockChat returns empty response if prompt is long about langchain-aws HOT 4 CLOSED

from typing import List
from langchain_aws.chat_models import BedrockChat 
import langchain_aws.chat_models.bedrock

def _convert_one_message_to_text_llama(message: BaseMessage) -> str:
    if isinstance(message, ChatMessage):
        message_text = f"<|begin_of_text|><|start_header_id|>{message.role}<|end_header_id|>{message.content}<|eot_id|>"
    elif isinstance(message, HumanMessage):
        message_text = f"<|begin_of_text|><|start_header_id|>user<|end_header_id|>{message.content}<|eot_id|>"
    elif isinstance(message, AIMessage):
        message_text = f"<|begin_of_text|><|start_header_id|>assistant<|end_header_id|>{message.content}<|eot_id|>"
    elif isinstance(message, SystemMessage):
        message_text = f"<|begin_of_text|><|start_header_id|>system<|end_header_id|>{message.content}<|eot_id|>"
    else:
        raise ValueError(f"Got unknown type {message}")
    return message_text

def convert_messages_to_prompt_llama(messages: List[BaseMessage]) -> str:
    """Convert a list of messages to a prompt for llama."""

    return "\n".join(
        [_convert_one_message_to_text_llama(message) for message in messages] + ["<|start_header_id|>assistant<|end_header_id|>\n\n"]
    )

langchain_aws.chat_models.bedrock._convert_one_message_to_text_llama = _convert_one_message_to_text_llama
langchain_aws.chat_models.bedrock.convert_messages_to_prompt_llama = convert_messages_to_prompt_llama