class_docstr: TimeWindow
  The unit of timestamp is milliseconds, the unit of window(range, step) is seconds.
class_docstr_tok: ["TimeWindow","The","unit","of","timestamp","is","milliseconds",",","the","unit","of","window","(","range",",","step",")","is","seconds","."]
code: def data(self):
      return self._window
  
file_path: towhee/towhee/runtime/nodes/_time_window.py
imports: from towhee.runtime.constants import TimeWindowConst
  from towhee.runtime.data_queue import Empty
  from ._window_base import WindowBase
label_desc: Use image node_id 3 for calling the _TimeWindowBuffer obj's underlying member method code with example usage: obj.data() and returns: self