code: func (c *RefCount) IncReads() {
  	tracebackEvent(c, c.NumRef(), incReadsEvent)
  	n := atomic.AddInt32(&c.reads, 1)
  
  	if ref := c.NumRef(); n > 0 && ref < 1 {
  		err := fmt.Errorf("read after free: reads=%d, ref=%d", n, ref)
  		panicRef(c, err)
  	}
  }
docs: // IncReads increments the reads count to this entity.