code: func (r *StatfsRequest) Respond(resp *StatfsResponse) {
  	out := &statfsOut{
  		outHeader: outHeader{Unique: uint64(r.ID)},
  		St: kstatfs{
  			Blocks:  resp.Blocks,
  			Bfree:   resp.Bfree,
  			Bavail:  resp.Bavail,
  			Files:   resp.Files,
  			Bsize:   resp.Bsize,
  			Namelen: resp.Namelen,
  			Frsize:  resp.Frsize,
  		},
  	}
  	r.Conn.respond(&out.outHeader, unsafe.Sizeof(*out))
  }
docs: // Respond replies to the request with the given response.