code: def get_instance_fn(
      value: str, config_file_path: Optional[str] = None
  ) -> Any:
      try:
          print_verbose(f"value: {value}")
          # Split the path by dots to separate module from instance
          parts = value.split(".")
  
          # The module path is all but the last part, and the instance_name is the last part
          module_name = ".".join(parts[:-1])
          instance_name = parts[-1]
  
          # If config_file_path is provided, use it to determine the module spec and load the module
          if config_file_path is not None:
              directory = os.path.dirname(config_file_path)
              module_file_path = os.path.join(
                  directory, *module_name.split(".")
              )
              module_file_path += ".py"
  
              spec = importlib.util.spec_from_file_location(
                  module_name, module_file_path
              )
              if spec is None:
                  raise ImportError(
                      f"Could not find a module specification for {module_file_path}"
                  )
              module = importlib.util.module_from_spec(spec)
              spec.loader.exec_module(module)  # type: ignore
          else:
              # Dynamically import the module
              module = importlib.import_module(module_name)
  
          # Get the instance from the module
          instance = getattr(module, instance_name)
  
          return instance
      except ImportError as e:
          # Re-raise the exception with a user-friendly message
          raise ImportError(
              f"Could not import {instance_name} from {module_name}"
          ) from e
      except Exception as e:
          raise e
  
imports: from typing import Optional, List, Any, Literal, Union
  import os, subprocess, hashlib, importlib, asyncio, copy, json, aiohttp, httpx
  import litellm, backoff
  from litellm.proxy._types import UserAPIKeyAuth, DynamoDBArgs
  from litellm.caching import DualCache
  from litellm.proxy.hooks.parallel_request_limiter import MaxParallelRequestsHandler
  from litellm.proxy.hooks.max_budget_limiter import MaxBudgetLimiter
  from litellm.integrations.custom_logger import CustomLogger
  from litellm.proxy.db.base_client import CustomDB
  from fastapi import HTTPException, status
  import smtplib
  from email.mime.text import MIMEText
  from email.mime.multipart import MIMEMultipart
label_desc: Use image node_id 3 for calling a global function with example usage: get_instance_fn(value, config_file_path) and returns: instance