code: def _hover_opts(self, element):
      xdim, ydim = element.kdims
      return [
          (xdim.pprint_label, "$x"),
          (ydim.pprint_label, "$y"),
          ("RGBA", "@image"),
      ], {}
  
imports: import sys
  import numpy
  import param
  from bokeh.models import CustomJSHover, DatetimeAxis
  from ...core.util import cartesian_product, dimension_sanitizer, isfinite
  from ...element import Raster
  from ..util import categorical_legend
  from .chart import PointPlot
  from .element import ColorbarPlot, LegendPlot
  from .selection import BokehOverlaySelectionDisplay
  from .styles import base_properties, fill_properties, line_properties, mpl_to_bokeh
  from .util import bokeh33, bokeh34, colormesh
label_desc: Use image node_id 2 for calling the RGBPlot obj's underlying member method code with example usage: obj._hover_opts(element) and returns: list,  dict