 				],
 				[
 					[
-						'text', 
-						[2, 2], 
+						'text',
+						[2, 2],
 						undefined,
 						[
 							[

			]]

			expect: [[
				'foreach ($model->x as $key => $value) {',
				[[
					'echo htmlspecialchars($key), htmlspecialchars(\' = \'), htmlspecialchars($value), htmlspecialchars(\'"\');'
				]],

					[]
				]
			]

		'binding of a tuple':
			input: [
				['binding', [ 1, 1 ], null,
