class_docstr: Return a blank instance of the parent and add as subgraph on exit.
class_docstr_tok: ["Return","a","blank","instance","of","the","parent","and","add","as","subgraph","on","exit","."]
code: def __init__(self, parent, kwargs):
      self.parent = parent
      self.graph = parent.__class__(**kwargs)
  
imports: from .None import backend
  from .None import files
  from .None import lang
label_desc: Use image node_id 1 to create a new SubgraphContext object from inherited base classes: object with example: obj = SubgraphContext(parent, kwargs)