nextcloud / circles

			'public'   => Circle::CIRCLES_PUBLIC

		];

		if (!key_exists(strtolower($type), $types)) {

			throw new CircleTypeNotValidException('unknown type: ' . json_encode(array_keys($types)));

		}

		$type = $types[strtolower($type)];

			'owner'     => Member::LEVEL_OWNER

		];

		if (!key_exists(strtolower($level), $levels)) {

			throw new Exception('unknown level: ' . json_encode(array_keys($levels)));

		}

		$level = $levels[strtolower($level)];

			'owner'     => Member::LEVEL_OWNER

		];

		if (!key_exists(strtolower($level), $levels)) {

			throw new Exception('unknown level: ' . json_encode(array_keys($levels)));

		}

		$level = $levels[strtolower($level)];