Function destroy

cjs/src/connection.js:863–867

(error, callback)

        socket.write(b().d().raw(chunk).end(), callback)
      },
      destroy(error, callback) {
        callback(error)
        socket.write(b().f().str(error + b.N).end())
        stream = null
      },
      final(callback) {
        socket.write(b().c().end())
        final = callback