class_docstr: Vertical Pyramid graph class
class_docstr_tok: ["Vertical","Pyramid","graph","class"]
docstr: Format value for dual value display.
docstr_tok: ["Format","value","for","dual","value","display","."]
code: def _value_format(self, value):
      """Format value for dual value display."""
      return super(VerticalPyramid, self)._value_format(
          value and abs(value)
      )
  
file_path: pygal/pygal/graph/pyramid.py
imports: from pygal.adapters import positive
  from pygal.graph.horizontal import HorizontalGraph
  from pygal.graph.stackedbar import StackedBar
label_desc: Use image node_id 1 for calling the VerticalPyramid obj's underlying member method code with example usage: obj._value_format(value) and returns: super