code: def postprocess(self, input_data, raw_data=None, casename=None):
      return np.argmax(input_data, axis=1)[..., None]
  
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 MaximumClassifier obj's underlying member method code with example usage: obj.postprocess(input_data, raw_data, casename) and returns: np