def wait(state)
      if !LXC::Shell.valid_state?(status.state)
        raise ArgumentError, "Invalid container state: #{state}"
      end

      run("wait", "-s", state)
    end
def wait(state)
      if !LXC::Shell.valid_state?(status.state)
        raise ArgumentError, "Invalid container state: #{state}"
      end

      run("wait", "-s", state)
    end
Wait for container to change status
 @param [String] state name