code: def ctc_available():
      if os.name == "nt":
          ctc_available.msg = (
              "Windows platforms are currently not supported ",
          )
          "by underlying CTC library (warp-ctc)."
          return False
      elif not ctc_present():
          ctc_available.msg = ctc_present.msg
          return False
  
      ctc_available.path = ctc_present.path
      return True
  
imports: from __future__ import division, absolute_import, print_function
  import os
  import sys
  import theano.tensor
  from theano import config
  from theano import gof
  from theano.gof import local_optimizer
  from theano.gof.cmodule import GCC_compiler
  from theano.tensor.opt import register_canonicalize
  from theano.tensor.extra_ops import cpu_contiguous
  from theano.gradient import grad_undefined
label_desc: Use image node_id 4 for calling a global function with example usage: ctc_available() and returns: True, False, False