code: def scalar_minimizer(self, sig=0.15):
      out = self.mini.scalar_minimize(method=self.minimizer)
  
      self.residual(out.params, self.x)
  
      for para, true_para in zip(
          out.params.values(), self.p_true.values()
      ):
          check_wo_stderr(para, true_para.value, sig=sig)
  
imports: import sys
  import unittest
  import numpy
  from numpy import pi
  from numpy.testing import assert_allclose, assert_almost_equal, assert_equal
  import pytest
  from scipy.optimize import rosen_der
  from uncertainties import ufloat
  from lmfit import Minimizer, Parameters, minimize
  from lmfit.lineshapes import gaussian
  from lmfit.minimizer import HAS_EMCEE, SCALAR_METHODS, MinimizerResult, coerce_float64
  from lmfit.models import SineModel
label_desc: Use image node_id 5 for calling the CommonMinimizerTest obj's underlying member method code with example usage: obj.scalar_minimizer(sig) without return types