code: def non_neighbors(graph, node):
      """Returns the non-neighbors of the node in the graph.
  
      Parameters
      ----------
      graph : NetworkX graph
          Graph to find neighbors.
  
      node : node
          The node whose neighbors will be returned.
  
      Returns
      -------
      non_neighbors : iterator
          Iterator of nodes in the graph that are not neighbors of the node.
      """
      nbors = set(neighbors(graph, node)) | {node}
      return (nnode for nnode in graph if nnode not in nbors)
  
imports: from collections import Counter
  from itertools import chain
  import networkx
  from networkx.utils import not_implemented_for, pairwise
label_desc: Use image node_id 28 for calling a global function with example usage: non_neighbors(graph, node) and returns: unknown