class_docstr: Class for loading data.
docstr: Return a random sample, in stroke-3 format as used by draw_strokes.
docstr_tok: ["Return","a","random","sample",",","in","stroke-3","format","as","used","by","draw_strokes","."]
code: def random_sample(self):
      """Return a random sample, in stroke-3 format as used by draw_strokes."""
      sample = np.copy(random.choice(self.strokes))
      return sample
  
imports: import random
  import numpy
label_desc: Use image node_id 3 for calling the DataLoader obj's underlying member method code with example usage: obj.random_sample() and returns: sample