code: def _get_spline(sfd):
      if "SplineSet" not in sfd:
          return ""
      pro = sfd[sfd.index("SplineSet") + 10 :]
      pro = pro[: pro.index("EndSplineSet")]
      return pro
  
imports: import io
  import numpy
  from PIL import Image
  from six.moves import zip_longest
  from skimage import draw
  import tensorflow.compat.v1
label_desc: Use image node_id 3 for calling a global function with example usage: _get_spline(sfd) and returns: pro, str