code: def test_delay(fx_asset):
      fpath = str(fx_asset.joinpath("nocomments-delay-100.gif"))
      with Image(filename=fpath) as img:
          for s in img.sequence:
              assert s.delay == 100
  
imports: from __future__ import print_function
  from pytest import mark, raises
  from wand.api import library
  from wand.image import Image
label_desc: Use image node_id 27 for calling a global function with example usage: test_delay(fx_asset) without return types