code: def _get_intercept(self):
      raise NotImplementedError
  
imports: import math
  import numpy
  from m2cgen import ast
  from m2cgen.assemblers import utils
  from m2cgen.assemblers.base import ModelAssembler
label_desc: Use image node_id 4 for calling the BaseLinearModelAssembler obj's underlying member method code with example usage: obj._get_intercept() without return types