old_contents: from .decorators import deprecated
  
  
  class Dummy:
      """A class that did nothing.
  
      Examples:
          >>> Dummy()
          <openfisca_core.commons.dummy.Dummy object...
  
      .. deprecated:: 34.7.0
          :class:`.Dummy` has been deprecated and it will be removed in 36.0.0.
  
      """
  
      @deprecated(since = "34.7.0", expires = "36.0.0")
      def __init__(self) -> None:
          ...
  
new_contents: from .decorators import deprecated
  
  
  class Dummy:
      """A class that did nothing.
  
      Examples:
          >>> Dummy()
          <openfisca_core.commons.dummy.Dummy object...
  
      .. deprecated:: 34.7.0
          :class:`.Dummy` has been deprecated and it will be removed in the
          future.
  
      """
  
      @deprecated(since = "34.7.0", expires = "in the future")
      def __init__(self) -> None:
          ...
  
subject: Remove deprecation expiration