code: def test_print_tree_MatAdd_noassumptions():
      from sympy.matrices.expressions import MatrixSymbol
  
      A = MatrixSymbol("A", 3, 3)
      B = MatrixSymbol("B", 3, 3)
  
      test_str = """MatAdd: A + B
  +-MatrixSymbol: A
  | +-Str: A
  | +-Integer: 3
  | +-Integer: 3
  +-MatrixSymbol: B
    +-Str: B
    +-Integer: 3
    +-Integer: 3
  """
  
      assert tree(A + B, assumptions=False) == test_str
  
imports: from sympy.printing.tree import tree
  from sympy.testing.pytest import XFAIL
label_desc: Use image node_id 2 for calling a global function with example usage: test_print_tree_MatAdd_noassumptions() without return types