class_docstr: The configuration class as stored in the ModelGraph.
  
  Args:
      config (dict):  The configuration dictionary
code: def get_output_dir(self):
      return self.get_config_value("OutputDir")
  
imports: import ctypes
  import os
  import platform
  from collections import OrderedDict
  import numpy
  import numpy.ctypeslib
  from hls4ml.backends import get_backend
  from hls4ml.model.flow import get_flow
  from hls4ml.model.layers import layer_map
  from hls4ml.model.optimizer import get_available_passes, optimize_model
label_desc: Use image node_id 4 for calling the HLSConfig obj's underlying member method code with example usage: obj.get_output_dir() and returns: self