code: def test_doit_equals_pow():  # 17179
      X = ImmutableMatrix([[1, 0], [0, 1]])
      assert MatPow(X, n).doit() == X**n == X
  
imports: from sympy.functions.elementary.miscellaneous import sqrt
  from sympy.simplify.powsimp import powsimp
  from sympy.testing.pytest import raises
  from sympy.core.expr import unchanged
  from sympy.core import symbols, S
  from sympy.matrices import Identity, MatrixSymbol, ImmutableMatrix, ZeroMatrix, OneMatrix, Matrix
  from sympy.matrices.exceptions import NonSquareMatrixError
  from sympy.matrices.expressions import MatPow, MatAdd, MatMul
  from sympy.matrices.expressions.inverse import Inverse
  from sympy.matrices.expressions.matexpr import MatrixElement
label_desc: Use image node_id 8 for calling a global function with example usage: test_doit_equals_pow() without return types