code: def __init__(self, expr_override, cross_filter_set, **params):
      super().__init__(
          [expr_override, cross_filter_set], exclusive=True, **params
      )
  
imports: from collections import namedtuple
  import numpy
  import param
  from param.parameterized import bothmethod
  from .core.data import Dataset
  from .core.element import Element, Layout
  from .core.layout import AdjointLayout
  from .core.options import CallbackError, Store
  from .core.overlay import NdOverlay, Overlay
  from .core.spaces import GridSpace
  from .streams import CrossFilterSet, Derived, Pipe, PlotReset, SelectionExprSequence, SelectMode, Stream
  from .util import DynamicMap
label_desc: Use image node_id 1 to create a new _SelectionExprLayers object from inherited base classes: Derived with example: obj = _SelectionExprLayers(expr_override, cross_filter_set)