docstr: Return two-float tuple with relative and absolute sizes.
docstr_tok: ["Return","two-float","tuple","with","relative","and","absolute","sizes","."]
code: def get_size(self, renderer):
      """
      Return two-float tuple with relative and absolute sizes.
      """
      raise NotImplementedError("Subclasses must implement")
  
imports: from numbers import Real
  from matplotlib import _api
  from matplotlib.axes import Axes
label_desc: Use image node_id 3 for calling the _Base obj's underlying member method code with example usage: obj.get_size(renderer) without return types