code: func (c *processCollector) Describe(ch chan<- *Desc) {
  	ch <- c.cpuTotal
  	ch <- c.openFDs
  	ch <- c.maxFDs
  	ch <- c.vsize
  	ch <- c.maxVsize
  	ch <- c.rss
  	ch <- c.startTime
  }
docs: // Describe returns all descriptions of the collector.