code: def __init__(
      self, module_number, relationship, object_name1, object_name2
  ):
      self.module_number = module_number
      self.relationship = relationship
      self.object_name1 = object_name1
      self.object_name2 = object_name2
  
label_desc: Use image node_id 1 to create a new RelationshipKey object  with example: obj = RelationshipKey(module_number, relationship, object_name1, object_name2)