code: def __init__(self, edge_type, num_pos=1, max_id=-1):
      self.edge_type = edge_type
      self.num_pos = num_pos
      self.max_id = max_id
  
file_path: euler/tf_euler/python/solution/samplers.py
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  import tensorflow
  import tf_euler
label_desc: Use image node_id 1 to create a new SamplePosWithTypes object from inherited base classes: object with example: obj = SamplePosWithTypes(edge_type, num_pos, max_id)