class_docstr: Base class for maps
docstr: Format value for map value display.
code: def _value_format(self, value):
      """
      Format value for map value display.
      """
      return "%s: %s" % (
          self.area_names.get(self.adapt_code(value[0]), "?"),
          self._y_format(value[1]),
      )
  
file_path: pygal/pygal/graph/map.py
imports: from pygal.etree import etree
  from pygal.graph.graph import Graph
  from pygal.util import alter, cached_property, cut, decorate
label_desc: Use image node_id 4 for calling the BaseMap obj's underlying member method code with example usage: obj._value_format(value) and returns: unknown