class_docstr: Configure annotations (for pie and bar charts).
  
  Examples
  --------
  .. jupyter-execute::
      :linenos:
      :emphasize-lines: 6
  
      from lets_plot import *
      LetsPlot.setup_html()
      data = {'name': ['a', 'b', 'c', 'd', 'b'], 'value': [40, 90, 10, 50, 20 ] }
      ggplot(data) + geom_pie(aes(slice='value', fill='name'), size=15, hole=0.4, \
                              stat='identity', tooltips = 'none', \
                              labels=layer_labels().line('@value'))
docstr: Text size in the annotation.
  
  Parameters
  ----------
  value : float
      Text size in the annotation.
  
  Returns
  -------
  `layer_labels`
      Annotations specification.
  
  Examples
  --------
  
  .. jupyter-execute::
      :linenos:
      :emphasize-lines: 7
  
      from lets_plot import *
      LetsPlot.setup_html()
      data = {'name': ['a', 'b', 'c', 'd', 'b'], 'value': [40, 90, 10, 50, 20 ] }
      ggplot(data) + geom_pie(aes(slice='value', fill='name'), size=15, hole=0.4, \
                              stat='identity', tooltips = 'none', \
                              labels=layer_labels().line('@value')
                                                       .size(25))
code: def size(self, value):
      """
          Text size in the annotation.
  
          Parameters
          ----------
          value : float
              Text size in the annotation.
  
          Returns
          -------
          `layer_labels`
              Annotations specification.
  
          Examples
          --------
  
          .. jupyter-execute::
              :linenos:
              :emphasize-lines: 7
  
              from lets_plot import *
              LetsPlot.setup_html()
              data = {'name': ['a', 'b', 'c', 'd', 'b'], 'value': [40, 90, 10, 50, 20 ] }
              ggplot(data) + geom_pie(aes(slice='value', fill='name'), size=15, hole=0.4, \\
                                      stat='identity', tooltips = 'none', \\
                                      labels=layer_labels().line('@value')
                                                               .size(25))
  
          """
  
      self._size = value
      return self
  
file_path: lets-plot/python-package/lets_plot/plot/annotation.py
imports: from typing import List
  from lets_plot.plot.core import FeatureSpec, _filter_none
label_desc: Use image node_id 5 for calling the layer_labels obj's underlying member method code with example usage: obj.size(value) and returns: self