query.go
func (q *Query) WaitConditionNegate() *Query {
	q.headers = append(q.headers, "WaitConditionNegate:")
	return q
}
func (q *Query) WaitConditionNegate() *Query {
	q.headers = append(q.headers, "WaitConditionNegate:")
	return q
}
// WaitConditionNegate negates the most recent wait condition.