code: def astra_supports(feature):
      
      from odl.util.utility import pkg_supports
      return pkg_supports(feature, ASTRA_VERSION, ASTRA_FEATURES)
docs: Return bool indicating whether current ASTRA supports ``feature``.
  
      Parameters
      ----------
      feature : str
          Name of a potential feature of ASTRA. See ``ASTRA_FEATURES`` for
          possible values.
  
      Returns
      -------
      supports : bool
          ``True`` if the currently imported version of ASTRA supports the
          feature in question, ``False`` otherwise.