def on(hosts, options={}, &block)
      subset_copy = Marshal.dump(Configuration.env.filter(hosts))
      SSHKit::Coordinator.new(Marshal.load(subset_copy)).each(options, &block)
    end
def on(hosts, options={}, &block)
      subset_copy = Marshal.dump(Configuration.env.filter(hosts))
      SSHKit::Coordinator.new(Marshal.load(subset_copy)).each(options, &block)
    end
rubocop:disable Security/MarshalLoad