docstr: Returns the current backend.
docstr_tok: ["Returns","the","current","backend","."]
code: def get_backend(self):
      """
      Returns the current backend.
      """
      return self.BACKEND
  
file_path: pgmpy/pgmpy/global_vars.py
imports: import logging
  import numpy
  import torch
label_desc: Use image node_id 5 for calling the Config obj's underlying member method code with example usage: obj.get_backend() and returns: self