code: def __getitem__(
      self, node_type: _typing.Optional[str]
  ) -> SpecificTypedNodeView:
      raise NotImplementedError
  
imports: import torch
  import typing
  from .None import _canonical_edge_type
label_desc: Use image node_id 3 for calling the HeterogeneousNodeView obj's underlying member method code with example usage: obj.__getitem__(node_type) without return types