code: def test_type(self):
      t1 = linspace(0, 1, 0).dtype
      t2 = linspace(0, 1, 1).dtype
      t3 = linspace(0, 1, 2).dtype
      assert_equal(t1, t2)
      assert_equal(t2, t3)
  
imports: import sys
  import pytest
  import numpy
  from numpy import logspace, linspace, geomspace, dtype, array, arange, isnan, ndarray, sqrt, nextafter, stack, errstate
  from numpy._core import sctypes
  from numpy._core.function_base import add_newdoc
  from numpy.testing import assert_, assert_equal, assert_raises, assert_array_equal, assert_allclose, IS_PYPY
label_desc: Use image node_id 3 for calling the TestLinspace obj's underlying member method code with example usage: obj.test_type() without return types