code: def is_numpy_file(filename):
      return os.path.splitext(filename)[-1].lower() == ".npy"
  
imports: import logging
  import os
  import re
  import shutil
  import sys
  import tempfile
  import urllib.request
  from urllib.parse import parse_qs, unquote, urlparse
  from urllib.request import urlopen
  import boto3
  import numpy
  import pkg_resources
  import scipy.io
  from google.cloud import storage
  from google.cloud.exceptions import NotFound
  from google.auth.exceptions import DefaultCredentialsError
  from ..constants.image import ALL_IMAGE_EXTENSIONS, FILE_SCHEME, PASSTHROUGH_SCHEMES, SUPPORTED_MOVIE_EXTENSIONS
  from ..constants.measurement import FTR_WELL
  from .measurement import is_well_column_token, is_well_row_token
label_desc: Use image node_id 7 for calling a global function with example usage: is_numpy_file(filename) and returns: unknown