def get_asset_search_session(self, proxy=None):
return self._provider_manager.get_asset_search_session(proxy)<EOL>
Gets an asset search session.

        arg:    proxy (osid.proxy.Proxy): a proxy
        return: (osid.repository.AssetSearchSession) - an
                ``AssetSearchSession``
        raise:  NullArgument - ``proxy`` is ``null``
        raise:  OperationFailed - unable to complete request
        raise:  Unimplemented - ``supports_asset_search()`` is ``false``
        *compliance: optional -- This method must be implemented if
        ``supports_asset_search()`` is ``true``.*