public void write_yield_unknown_expression_type(yield_unknown_expression_type _yield_unknown_expression_type)
		{
			write_type_definition(_yield_unknown_expression_type);
		}
		public void visit(yield_unknown_expression_type _yield_unknown_expression_type)
		{
			bw.Write((Int16)213);
			write_yield_unknown_expression_type(_yield_unknown_expression_type);
		}
		public void write_yield_unknown_expression_type(yield_unknown_expression_type _yield_unknown_expression_type)
		{
			write_type_definition(_yield_unknown_expression_type);
			if (_yield_unknown_expression_type.Vds == null)
			{
				bw.Write((byte)0);
			}
			else
			{
				bw.Write((byte)1);
				_yield_unknown_expression_type.Vds.visit(this);
			}
		}
		public void read_yield_unknown_expression_type(yield_unknown_expression_type _yield_unknown_expression_type)
		{
			read_type_definition(_yield_unknown_expression_type);
			_yield_unknown_expression_type.Vds = _read_node() as var_def_statement;
		}
		public void visit(yield_unknown_expression_type _yield_unknown_expression_type)
		{
			read_yield_unknown_expression_type(_yield_unknown_expression_type);
		}
		public void read_yield_unknown_expression_type(yield_unknown_expression_type _yield_unknown_expression_type)
		{
			read_type_definition(_yield_unknown_expression_type);
		}