code: func (p *peerConnection) SetBodiesIdle(delivered int) {
  	p.setIdle(p.blockStarted, delivered, &p.blockThroughput, &p.blockIdle)
  }
docs: // SetBodiesIdle sets the peer to idle, allowing it to execute block body retrieval
  // requests. Its estimated body retrieval throughput is updated with that measured
  // just now.