How to use the pelican.signals.get_generators function in pelican

def register():
    # TODO: why `lambda generators: AliasGenerator` doesn't work?
    signals.get_generators.connect(get_generators)

def register():
    signals.get_generators.connect(get_generators)

def register():
    signals.initialized.connect(initialized)
    signals.get_generators.connect(generator.get_generators)
    signals.content_object_init.connect(content.update_content)
    signals.finalized.connect(thumbnails.generate_thumbnails)

def register():
    """Registers the module function `get_generators`."""
    signals.get_generators.connect(get_generators)

def register(): # for Pelican
    import pelican.signals

    pelican.signals.get_generators.connect(_pelican_get_generators)

def register():
    signals.get_generators.connect(get_generators)

def register():
    signals.get_generators.connect(get_generators)

def register():
    """Registers the module function `get_generators`."""
    signals.get_generators.connect(get_generators)

def register():
    signals.get_generators.connect(get_generators)

def register():
    signals.get_generators.connect(get_generators)