[
		# Filter
		{
			"cell \(lib_1\)" => {
				"pin (\"*\")" => {
					"timing ()" => 1,
					# 'max_transition' => [ 20 ],
				},
			},
		},
		# Changes
		{
			"cell \(lib_1\)" => {
				"pin (\"*\")" => {
					'max_transition' => { action => 'delete' },
				},
			},
		}
	],