code: def get_children(
      g: Plottable, node_id: Union[str, int], hops: int = 1
  ):
      """Helper that gets children at k-hops from node `node_id`
  
      :returns graphistry instance of hops
      """
      g2 = g.hop(pd.DataFrame({g._node: [node_id]}), hops=hops)
      return g2
  
imports: from typing import Union, Optional, List
  import copy, logging, pandas, numpy
  from graphistry.PlotterBase import Plottable
label_desc: Use image node_id 2 for calling a global function with example usage: get_children(g, node_id, hops) and returns: g2