init init_anoimport (
		n_visibility: nullable AVisibility,
		n_kwimport: nullable TKwimport,
		n_kwend: nullable TKwend
	)
	do
		_n_visibility = n_visibility.as(not null)
		n_visibility.parent = self
		_n_kwimport = n_kwimport.as(not null)
		n_kwimport.parent = self
		_n_kwend = n_kwend.as(not null)
		n_kwend.parent = self
	end