docstr: Test deprecated decorator with just `since` set.
docstr_tok: ["Test","deprecated","decorator","with","just","`","since","`","set","."]
code: def test_meth_except1(self):
      """Test deprecated decorator with just `since` set."""
  
      class Foo6:
          @deprecated(version_val=self.test_version)
          def meth1(self):
              pass
  
      self.assertRaises(DeprecatedError, lambda: Foo6().meth1())
  
imports: from __future__ import annotations
  import unittest
  import warnings
  from monai.utils import DeprecatedError, deprecated, deprecated_arg, deprecated_arg_default
label_desc: Use image node_id 11 for calling the TestDeprecated obj's underlying member method code with example usage: obj.test_meth_except1() without return types