code: def prepare_import(path):
      """Given a filename this will try to calculate the python path, add it
      to the search path and return the actual module name that is expected.
      """
      path = os.path.realpath(path)
  
      fname, ext = os.path.splitext(path)
      if ext == ".py":
          path = fname
  
      if os.path.basename(path) == "__init__":
          path = os.path.dirname(path)
  
      module_name = []
  
      # move up until outside package structure (no __init__.py)
      while True:
          path, name = os.path.split(path)
          module_name.append(name)
  
          if not os.path.exists(os.path.join(path, "__init__.py")):
              break
  
      if sys.path[0] != path:
          sys.path.insert(0, path)
  
      return ".".join(module_name[::-1])
  
imports: from __future__ import annotations
  import ast
  import importlib.metadata
  import inspect
  import os
  import platform
  import re
  import sys
  import traceback
  import typing
  from functools import update_wrapper
  from operator import itemgetter
  import click
  from click.core import ParameterSource
  from werkzeug import run_simple
  from werkzeug.serving import is_running_from_reloader
  from werkzeug.utils import import_string
  from .globals import current_app
  from .helpers import get_debug_flag
  from .helpers import get_load_dotenv
label_desc: Use image node_id 4 for calling a global function with example usage: prepare_import(path) and returns: str