code: def font_size(self, font_size):
      self._font_size = float(font_size)
  
imports: import numpy
  from .widget import Widget
  from ...visuals import Visual
  from ...gloo import VertexBuffer
  from ...color import Color
label_desc: Use image node_id 7 for calling the ConsoleVisual obj's underlying member method code with example usage: obj.font_size(font_size) without return types