code: def __init__(
      self, input=None, **kw
  ):  # pylint: disable=redefined-builtin
      super().__init__(_input=input, **kw)
  
file_path: mars/mars/dataframe/window/core.py
imports: from ...serialization.serializables import Serializable, KeyField
label_desc: Use image node_id 1 to create a new Window object from inherited base classes: Serializable with example: obj = Window(input)