code: def _get_marker_compat(marker):
      import matplotlib.lines as mlines
  
      if marker not in mlines.lineMarkers:
          return "o"
      return marker
  
file_path: catboost/contrib/python/pandas/py2/pandas/plotting/_misc.py
imports: from __future__ import division
  import numpy
  from pandas.compat import lmap, lrange, range, zip
  from pandas.util._decorators import deprecate_kwarg
  from pandas.core.dtypes.missing import notna
  from pandas.io.formats.printing import pprint_thing
  from pandas.plotting._style import _get_standard_colors
  from pandas.plotting._tools import _set_ticks_props, _subplots
label_desc: Use image node_id 2 for calling a global function with example usage: _get_marker_compat(marker) and returns: marker, str