def create_sequence(context)
      pid_callback = lambda do |sequence|
        @mutex.synchronize { @pid = sequence.pid }
      end
      return RightScale::ExecutableSequenceProxy.new(context, :pid_callback => pid_callback )
    end
def create_sequence(context)
      pid_callback = lambda do |sequence|
        @mutex.synchronize { @pid = sequence.pid }
      end
      return RightScale::ExecutableSequenceProxy.new(context, :pid_callback => pid_callback )
    end
Factory method for a new sequence.

 context(RightScale::OperationContext)