@_FFI.callback(u'UTF8Buffer(ExternContext*, Id)')
def extern_id_to_str(context_handle, id_):
 c = _FFI.from_handle(context_handle)
 return c.utf8_buf(str(c.from_id(id_)))

@ _FFI . callback ( u'UTF8Buffer(ExternContext*, Id)' ) def extern_id_to_str ( context_handle , id_ ) : c = _FFI . from_handle ( context_handle ) return c . utf8_buf ( str ( c . from_id ( id_ ) ) )
given an id for obj .