const replicate = require('hypercore-replicate')
replicate(...hypercores, opts, callback)

const replicate = require('hypercore-replicate')
const hypercore = require('hypercore')
const ram = require('random-access-memory')

const feed = hypercore(ram)
feed.ready(() => {
  const copy = hypercore(ram, feed.key)
  const other = hypercore(ram, feed.key)
  replicate(feed, copy, other.replicate(), { live: true })
  feed.append('hello')
  copy.update(() => copy.head(console.log)) // 'null <Buffer 68 65 6c 6c 6f>'
  other.update(() => other.head(console.log)) // 'null <Buffer 68 65 6c 6c 6f>'
})