code: func (q *Query) Skip(n int) *Query {
  	q.m.Lock()
  	q.op.skip = int32(n)
  	q.m.Unlock()
  	return q
  }
docs: // Skip skips over the n initial documents from the query results.  Note that
  // this only makes sense with capped collections where documents are naturally
  // ordered by insertion time, or with sorted results.