class_docstr: This class reverses the effect of one-hot encoding data. 
      
code: def postprocess(self, input_data, raw_data=None, casename=None):
      output_data = np.argmax(input_data, axis=1)
  
      return output_data
  
imports: import numpy
  from deepneuro.postprocessing.postprocessor import Postprocessor
  from deepneuro.utilities.util import add_parameter
label_desc: Use image node_id 2 for calling the UniqueClasses obj's underlying member method code with example usage: obj.postprocess(input_data, raw_data, casename) and returns: output_data