code: def normalize_full_name_true(decl):
      
      if decl.cache.normalized_full_name_true is None:
          decl.cache.normalized_full_name_true = normalize(
              declaration_utils.full_name(decl, with_defaults=True))
      return decl.cache.normalized_full_name_true
docs: Cached variant of normalize
  
      Args:
          decl (declaration.declaration_t): the declaration
  
      Returns:
          str: normalized name