class_docstr: The Mode represents a way to optimize and then link a computation graph.
  
  Parameters
  ----------
  optimizer : a structure of type Optimizer
      An Optimizer may simplify the math, put similar computations together,
      improve numerical stability and various other improvements.
  linker : a structure of type Linker
      A Linker decides which implementations to use (C or Python, for example)
      and how to string them together to perform the computation.
  
  See Also
  --------
  predefined_linkers
  predefined_optimizers
  predefined_modes
code: def get_linker_optimizer(self, linker, optimizer):
      if isinstance(linker, string_types) or linker is None:
          linker = predefined_linkers[linker]
      if isinstance(optimizer, string_types) or optimizer is None:
          optimizer = predefined_optimizers[optimizer]
      return (linker, optimizer)
  
imports: from __future__ import absolute_import, print_function, division
  import logging
  import warnings
  import theano
  from theano import gof
  import theano.gof.vm
  from theano import config
  from six import string_types
  from theano.compile.function_module import Supervisor
label_desc: Use image node_id 6 for calling the Mode obj's underlying member method code with example usage: obj.get_linker_optimizer(linker, optimizer) and returns: linker,  optimizer