code: def public(obj):
      if (
          not isinstance(obj, type)
          or getattr(obj, "abstract", False)
          and obj is not Element
      ):
          return False
      return issubclass(obj, Element)
  
imports: from ..core import HoloMap
  from ..core.data import DataConversion, Dataset
  from .annotation import *
  from .chart import *
  from .chart3d import *
  from .geom import *
  from .graphs import *
  from .path import *
  from .raster import *
  from .sankey import *
  from .stats import *
  from .tabular import *
  from .tiles import *
label_desc: Use image node_id 1 for calling a global function with example usage: public(obj) and returns: issubclass, False