code: def test_dtype(self):
      x = np.arange(10)
      a = array_like(x, "a", dtype=np.float32)
      assert a.dtype == np.float32
  
      a = array_like(x, "a", dtype=np.uint8)
      assert a.dtype == np.uint8
  
imports: from collections import OrderedDict
  import numpy
  import pandas
  import pytest
  from statsmodels.tools.validation import array_like, PandasWrapper, bool_like, dict_like, float_like, int_like, string_like
  from statsmodels.tools.validation.validation import _right_squeeze
label_desc: Use image node_id 6 for calling the TestArrayLike obj's underlying member method code with example usage: obj.test_dtype() without return types