class_docstr: Tests the flatten and unflatten functions
class_docstr_tok: ["Tests","the","flatten","and","unflatten","functions"]
docstr: Tests that _unflatten successfully unflattens multidimensional arrays.
docstr_tok: ["Tests","that","_unflatten","successfully","unflattens","multidimensional","arrays","."]
code: def test_unflatten(self, shape):
      """Tests that _unflatten successfully unflattens multidimensional arrays."""
  
      reshaped = np.reshape(flat_dummy_array, shape)
      unflattened = np.array(
          list(pu.unflatten(flat_dummy_array, reshaped))
      )
  
      assert unflattened.shape == reshaped.shape
      assert np.array_equal(unflattened, reshaped)
  
imports: import functools
  import itertools
  import pytest
  import numpy
  import pennylane
  import pennylane.utils
label_desc: Use image node_id 2 for calling the TestFlatten obj's underlying member method code with example usage: obj.test_unflatten(shape) without return types