docs: def identical_functions(self):
          """
          :returns: A list of function matches that appear to be identical
          """
          identical_funcs = []
          for (func_a, func_b) in self.function_matches:
              if self.functions_probably_identical(func_a, func_b):
                  identical_funcs.append((func_a, func_b))
          return identical_funcs