code: def clear():
      """Clears the current context figure of all marks axes and grid lines."""
      fig = _context["figure"]
      if fig is not None:
          fig.marks = []
          fig.axes = []
          setattr(fig, "axis_registry", {})
          _context["scales"] = {}
          key = _context["current_key"]
          if key is not None:
              _context["scale_registry"][key] = {}
  
imports: import sys
  from collections import OrderedDict
  from IPython.display import display
  from ipywidgets import Image
  from numpy import arange, issubdtype, array, column_stack, shape
  from .figure import Figure
  from bqscales import Scale, LinearScale, Mercator
  from .axes import Axis
  from .marks import Lines, Scatter, Hist, Bars, OHLC, Pie, Map, Image, Label, HeatMap, GridHeatMap, topo_load, Boxplot, Bins
  from .interacts import BrushIntervalSelector, FastIntervalSelector, BrushSelector, IndexSelector, MultiSelector, LassoSelector
  from traitlets.utils.sentinel import Sentinel
  import functools
label_desc: Use image node_id 46 for calling a global function with example usage: clear() without return types