init init_aexterncalls (
		n_kwimport: nullable TKwimport,
		n_extern_calls: Collection[Object] # Should be Collection[AExternCall]
	)
	do
		_n_kwimport = n_kwimport.as(not null)
		n_kwimport.parent = self
		self.n_extern_calls.unsafe_add_all(n_extern_calls)
	end