code: def test_ticket_1253(self):
      def linear(c, x):
          return c[0] * x + c[1]
  
      c = [2.0, 3.0]
      x = np.linspace(0, 10)
      y = linear(c, x)
  
      model = Model(linear)
      data = Data(x, y, wd=1.0, we=1.0)
      job = ODR(data, model, beta0=[1.0, 1.0])
      result = job.run()
      assert_equal(result.info, 2)
  
imports: import tempfile
  import shutil
  import os
  import numpy
  from numpy import pi
  from numpy.testing import assert_array_almost_equal, assert_equal, assert_warns
  import pytest
  from pytest import raises
  from scipy.odr import Data, Model, ODR, RealData, OdrStop, OdrWarning, multilinear, exponential, unilinear, quadratic, polynomial
label_desc: Use image node_id 16 for calling the TestODR obj's underlying member method code with example usage: obj.test_ticket_1253() and returns: unknown