class_docstr: Benchmark for feature routines in scikit-image.
code: def time_canny(self):
      feature.canny(self.image)
  
imports: import numpy
  from skimage import color, data, feature, util
label_desc: Use image node_id 2 for calling the FeatureSuite obj's underlying member method code with example usage: obj.time_canny() without return types