code: def image_extension_check(self, url):
      ext = url.split(".")[-1]
      if ext in ["jpeg", "jpg", "png"]:
          return ext
      raise Exception(
          "Unknown image format. Currently jpg, jpeg & png are supported."
      )
  
file_path: mindsdb/mindsdb/integrations/handlers/clipdrop_handler/clipdrop.py
imports: import requests
  import uuid
label_desc: Use image node_id 4 for calling the ClipdropClient obj's underlying member method code with example usage: obj.image_extension_check(url) and returns: ext