code: def test_constraint_dictionary_1(self):
      fun = lambda x: (x[0] - 1) ** 2 + (x[1] - 2.5) ** 2
      cons = (
          {"type": "ineq", "fun": lambda x: x[0] - 2 * x[1] + 2},
          {"type": "ineq", "fun": lambda x: -x[0] - 2 * x[1] + 6},
          {"type": "ineq", "fun": lambda x: -x[0] + 2 * x[1] + 2},
      )
  
      with suppress_warnings() as sup:
          sup.filter(UserWarning, "delta_grad == 0.0")
          res = minimize(
              fun,
              self.x0,
              method=self.method,
              bounds=self.bnds,
              constraints=cons,
          )
      assert_allclose(res.x, [1.4, 1.7], rtol=1e-4)
      assert_allclose(res.fun, 0.8, rtol=1e-4)
  
file_path: catboost/contrib/python/scipy/py3/scipy/optimize/tests/test_constraint_conversion.py
imports: import numpy
  from numpy.testing import assert_array_almost_equal, assert_allclose, assert_warns, suppress_warnings
  import pytest
  from scipy.optimize import NonlinearConstraint, LinearConstraint, OptimizeWarning, minimize, BFGS
  from .test_minimize_constrained import Maratos, HyperbolicIneq, Rosenbrock, IneqRosenbrock, EqIneqRosenbrock, BoundedRosenbrock, Elec
label_desc: Use image node_id 1 for calling the TestOldToNew obj's underlying member method code with example usage: obj.test_constraint_dictionary_1() without return types