code: def set_feature(self, feature_type, value, feature_idx):
      if feature_type == "dense":
          self.dense[feature_idx] = value
      elif feature_type == "sparse":
          self.sparse[feature_idx] = value
      elif feature_type == "binary":
          self.binary[feature_idx] = value
      else:
          print("error type is not support " + feature_type)
          exit(1)
  
file_path: euler/euler/tools/node.py
imports: import struct
  from euler.tools.util import *
label_desc: Use image node_id 3 for calling the Node obj's underlying member method code with example usage: obj.set_feature(feature_type, value, feature_idx) without return types