docstr: ...Check SVRG solver for a Logistic Regression with Ridge
  penalization
docstr_tok: ["...","Check","SVRG","solver","for","a","Logistic","Regression","with","Ridge","penalization"]
code: def test_solver_svrg(self):
      """...Check SVRG solver for a Logistic Regression with Ridge
      penalization
      """
      solver = SVRG(step=1e-3, max_iter=100, verbose=False, tol=0)
      self.check_solver(
          solver, fit_intercept=True, model="logreg", decimal=1
      )
  
imports: import unittest
  from warnings import catch_warnings, simplefilter
  from itertools import product
  import numpy
  from scipy.linalg.special_matrices import toeplitz
  from scipy.sparse import csr_matrix
  from tick.linear_model import ModelLinReg, ModelLogReg, SimuLogReg
  from tick.prox import ProxL1, ProxL1w, ProxTV, ProxEquality, ProxElasticNet
  from tick.solver import SVRG
  from tick.solver.tests import TestSolver
  from tick.solver.build.solver import SVRG_VarianceReductionMethod_Last
  from tick.solver.build.solver import SVRG_VarianceReductionMethod_Average
  from tick.solver.build.solver import SVRG_VarianceReductionMethod_Random
  from tick.solver.build.solver import SVRG_StepType_Fixed
  from tick.solver.build.solver import SVRG_StepType_BarzilaiBorwein
  from tick.simulation import weights_sparse_gauss
label_desc: Use image node_id 3 for calling the SVRGTest obj's underlying member method code with example usage: obj.test_solver_svrg() without return types