docstr: Borrowed from Anyscale docs. We may want something customized in the future though. 
docstr_tok: ["Borrowed","from","Anyscale","docs",".","We","may","want","something","customized","in","the","future","though","."]
code: def _validate_jsonl(jsonl_path):
      """Borrowed from Anyscale docs. We may want something customized in the future though."""
      with open(jsonl_path, "r", encoding="utf-8") as f:
          items = [json.loads(line) for line in f]
  
      def check_data_for_format_errors(items: list):
          for line_num, batch in enumerate(items):
              prefix = f"Error in line #{line_num + 1}: "
              if not isinstance(batch, dict):
                  raise Exception(
                      f"{prefix}Each line in the provided data should be a dictionary"
                  )
  
              if "messages" not in batch:
                  raise Exception(
                      f"{prefix}Each line in the provided data should have a 'messages' key"
                  )
  
              if not isinstance(batch["messages"], list):
                  raise Exception(
                      f"{prefix}Each line in the provided data should have a 'messages' key with a list of messages"
                  )  # noqa
  
              messages = batch["messages"]
              if not any(
                  message.get("role", None) == "assistant"
                  for message in messages
              ):
                  raise Exception(
                      f"{prefix}Each message list should have at least one message with role 'assistant'"
                  )  # noqa
  
              for message_num, message in enumerate(messages):
                  prefix = f"Error in line #{line_num + 1}, message #{message_num + 1}: "
                  if "role" not in message or "content" not in message:
                      raise Exception(
                          f"{prefix}Each message should have a 'role' and 'content' key"
                      )
  
                  if any(
                      k not in ("role", "content", "name")
                      for k in message
                  ):
                      raise Exception(
                          f"{prefix}Each message should only have 'role', 'content', and 'name' keys, any other key is not allowed"
                      )  # noqa
  
                  if message.get("role", None) not in (
                      "system",
                      "user",
                      "assistant",
                  ):
                      raise Exception(
                          f"{prefix}Each message should have a valid role (system, user, or assistant)"
                      )  # noqa
  
      try:
          check_data_for_format_errors(items)
      except Exception as e:
          raise Exception(
              f"Fine-tuning data format is not valid. Got: {e}"
          )
  
imports: import os
  import openai
  import json
  import contextlib
  from typing import Optional, Dict
  import pandas
  from mindsdb.integrations.handlers.openai_handler.openai_handler import OpenAIHandler
  from mindsdb.integrations.handlers.openai_handler.constants import OPENAI_API_BASE
  from mindsdb.integrations.utilities.handler_utils import get_api_key
  from mindsdb.utilities import log
label_desc: Use image node_id 12 for calling the AnyscaleEndpointsHandler obj's underlying member method code with example usage: obj._validate_jsonl(jsonl_path) without return types