chore: fix sample

Author: kernelshard

sample/sample.py

@@ -159,7 +159,7 @@
     print("File detail with url upload-", details, end="\n\n")
 
     print("-------------------------------------")
-    file_metadata = imagekit.get_metadata(list_files[0]['fileId'])
+    file_metadata = imagekit.get_metadata(list_files["response"][0]['fileId'])
 
     print("-------------------------------------")
     delete = imagekit.delete_file(list_files["response"][1]["fileId"], )