code: def conf_int(self):  # method for consistency with sm
      return [
          (0.5612, 1.0367),
          (0.3987, 1.6963),
          (-0.4106, 0.1405),
          (-62.0611, -20.1172),
      ]
  
imports: import numpy
label_desc: Use image node_id 2 for calling the HuberHuber obj's underlying member method code with example usage: obj.conf_int() and returns: list