cleanQuery

$clean_query = array(
	array(
		'key'     => 'api',
		'value'   => 'mobile.de',
		'compare' => '!=',
	),
	array(
		'relation' => 'OR',
		array(
			'key'     => 'complete',
			'compare' => '=',
		),
		array(
			'key'     => 'complete',
			'compare' => 'NOT EXISTS',
		),
	),
);