class_docstr: Wrapper class for the basic BlueFog API.
class_docstr_tok: ["Wrapper","class","for","the","basic","BlueFog","API","."]
docstr: A funnction that returns the virtual topology MPI used.
  
  Returns:
      topology: networkx.DiGraph.
docstr_tok: ["A","funnction","that","returns","the","virtual","topology","MPI","used",".","Returns",":","topology",":","networkx.DiGraph","."]
code: def load_topology(self) -> networkx.DiGraph:
      """A funnction that returns the virtual topology MPI used.
  
      Returns:
          topology: networkx.DiGraph.
      """
      return self._topology
  
imports: from typing import List, Callable, Optional
  import atexit
  import contextlib
  import ctypes
  import logging
  import networkx
  import bluefog.common.util
  import bluefog.common.topology_util
label_desc: Use image node_id 15 for calling the BlueFogBasics obj's underlying member method code with example usage: obj.load_topology() and returns: self