code: def test_composite_state_literal_slice(self):
      def f(n):
          d = {"a": n}
          while n > 0:
              d["a"] += 1
              n -= 1
          return d["a"], n
  
      self.assertTransformedResult(f, custom_constant(5), (10, 0))
  
imports: import collections
  from nvidia.dali._autograph.converters import break_statements
  from nvidia.dali._autograph.converters import continue_statements
  from nvidia.dali._autograph.converters import control_flow
  from nvidia.dali._autograph.core import converter_testing
  from nvidia.dali._autograph.utils.all_utils import custom_constant
label_desc: Use image node_id 5 for calling the WhileStatementTest obj's underlying member method code with example usage: obj.test_composite_state_literal_slice() and returns: d,  n