code: def validation_sample_count(self):
      sample_count = 0
  
      for root, dirs, files in os.walk("datasets/current/validation"):
          sample_count += len(files)
  
      return sample_count
  
file_path: SerpentAI/serpent/machine_learning/context_classification/context_classifier.py
imports: import serpent.datasets
  import os
  import random
  import skimage.io
label_desc: Use image node_id 3 for calling the ContextClassifier obj's underlying member method code with example usage: obj.validation_sample_count() and returns: sample_count