init init_aattrpropdef (
		n_doc: nullable ADoc,
		n_kwredef: nullable TKwredef,
		n_visibility: nullable AVisibility,
		n_kwvar: nullable TKwvar,
		n_id2: nullable TId,
		n_type: nullable AType,
		n_assign: nullable TAssign,
		n_expr: nullable AExpr,
		n_annotations: nullable AAnnotations,
		n_kwdo: nullable TKwdo,
		n_block: nullable AExpr,
		n_kwend: nullable TKwend
	)
	do
		_n_doc = n_doc
		if n_doc != null then n_doc.parent = self
		_n_kwredef = n_kwredef
		if n_kwredef != null then n_kwredef.parent = self
		_n_visibility = n_visibility.as(not null)
		n_visibility.parent = self
		_n_kwvar = n_kwvar.as(not null)
		n_kwvar.parent = self
		_n_id2 = n_id2.as(not null)
		n_id2.parent = self
		_n_type = n_type
		if n_type != null then n_type.parent = self
		_n_assign = n_assign
		if n_assign != null then n_assign.parent = self
		_n_expr = n_expr
		if n_expr != null then n_expr.parent = self
		_n_annotations = n_annotations
		if n_annotations != null then n_annotations.parent = self
		_n_kwdo = n_kwdo
		if n_kwdo != null then n_kwdo.parent = self
		_n_block = n_block
		if n_block != null then n_block.parent = self
		_n_kwend = n_kwend
		if n_kwend != null then n_kwend.parent = self
	end