code: def _get_gamma(self):
      raise NotImplementedError
  
imports: import numpy
  from m2cgen import ast
  from m2cgen.assemblers import utils
  from m2cgen.assemblers.base import ModelAssembler
label_desc: Use image node_id 6 for calling the BaseSVMModelAssembler obj's underlying member method code with example usage: obj._get_gamma() without return types