class_docstr: Actor-only induced subgraph of the film-directoractor-writer network
  from `Social Influence Analysis in Large-scale Networks
  <https://dl.acm.org/doi/10.1145/1557019.1557108>`, introduced by
  `Geom-GCN: Geometric Graph Convolutional Networks
  <https://arxiv.org/abs/2002.05287>`
  
  Nodes represent actors, and edges represent co-occurrence on the same
  Wikipedia page. Node features correspond to some keywords in the Wikipedia
  pages.
  
  Statistics:
  
  - Nodes: 7600
  - Edges: 33391
  - Number of Classes: 5
  - 10 train/val/test splits
  
      - Train: 3648
      - Val: 2432
      - Test: 1520
  
  Parameters
  ----------
  raw_dir : str, optional
      Raw file directory to store the processed data. Default: ~/.dgl/
  force_reload : bool, optional
      Whether to re-download the data source. Default: False
  verbose : bool, optional
      Whether to print progress information. Default: True
  transform : callable, optional
      A transform that takes in a :class:`~dgl.DGLGraph` object and returns
      a transformed version. The :class:`~dgl.DGLGraph` object will be
      transformed before every access. Default: None
  
  Attributes
  ----------
  num_classes : int
      Number of node classes
  
  Notes
  -----
  The graph does not come with edges for both directions.
code: def __init__(
      self,
      raw_dir=None,
      force_reload=False,
      verbose=True,
      transform=None,
  ):
      super(ActorDataset, self).__init__(
          name="actor",
          url=_get_dgl_url("dataset/actor.zip"),
          raw_dir=raw_dir,
          force_reload=force_reload,
          verbose=verbose,
          transform=transform,
      )
  
file_path: dgl/python/dgl/data/actor.py
imports: import os
  import numpy
  from ..convert import graph
  from .dgl_dataset import DGLBuiltinDataset
  from .utils import _get_dgl_url
label_desc: Use image node_id 1 to create a new ActorDataset object from inherited base classes: DGLBuiltinDataset with example: obj = ActorDataset(raw_dir, force_reload, verbose, transform)