add swarm too!

index.js

@@ -1,4 +1,5 @@
 const Base = require('cobox-group-base')
+const swarm = require('cobox-swarm')
 
 module.exports = (storage, address, opts = {}) => (
   new BlindReplicator(storage, address, opts)
@@ -9,6 +10,25 @@ class BlindReplicator extends Base {
     super(storage, address, opts)
     this._initFeeds(opts)
     this._readyCallback = this.multifeed.ready.bind(this.multifeed)
+    this._connection = null
+    this._isSwarming = true
+  }
+
+  swarm (opts = {}) {
+    this._connection = swarm(this, Object.assign(opts, {
+      logger: this.config.logger
+    }))
+    this._isSwarming = true
+    return true
+  }
+
+  unswarm () {
+    assert(this._isSwarming, 'already swarming')
+    this._connection.leave(this.discoveryKey)
+    this._connection.destroy()
+    this._connection = null
+    this._isSwarming = false
+    return true
   }
 
   save () {