code: def __init__(self, fanouts, metapath, add_self_loops=True, **kwargs):
      self.metapath = metapath
  
file_path: euler/tf_euler/python/dataflow/relation_dataflow.py
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  import tensorflow
  import tf_euler
  from tf_euler.python.dataflow.base_dataflow import DataFlow
label_desc: Use image node_id 1 to create a new RelationDataFlow object from inherited base classes: object with example: obj = RelationDataFlow(fanouts, metapath, add__loops)