code: def select_task(self):
      self.set_task_index((self.task + 1) % self.n_training_tasks)
  
file_path: deepchem/examples/low_data/toxcast_maml.py
imports: from __future__ import print_function
  import deepchem
  import numpy
  import tensorflow
  from sklearn.metrics import accuracy_score
label_desc: Use image node_id 5 for calling the ToxcastLearner obj's underlying member method code with example usage: obj.select_task() without return types