code: def test_sympify():
      from sympy.abc import x, y, z, t
  
      arr = MutableDenseNDimArray([[x, y], [1, z * t]])
      arr_other = sympify(arr)
      assert arr_other.shape == (2, 2)
      assert arr_other == arr
  
imports: from copy import copy
  from sympy.tensor.array.dense_ndim_array import MutableDenseNDimArray
  from sympy.core.function import diff
  from sympy.core.numbers import Rational
  from sympy.core.singleton import S
  from sympy.core.symbol import Symbol
  from sympy.core.sympify import sympify
  from sympy.matrices import SparseMatrix
  from sympy.matrices import Matrix
  from sympy.tensor.array.sparse_ndim_array import MutableSparseNDimArray
  from sympy.testing.pytest import raises
label_desc: Use image node_id 2 for calling a global function with example usage: test_sympify() without return types