proc collectVTableDispatchers(g: ModuleGraph) {.
    ...raises: [Exception, KeyError, ValueError, IOError, ERecoverableError], tags: [
    RootEffect, ReadDirEffect, WriteIOEffect, ReadIOEffect, ReadEnvEffect],
    forbids: [].}

proc sortVTableDispatchers(g: ModuleGraph) {....raises: [Exception, KeyError],
    tags: [RootEffect], forbids: [].}