code: def ylab(label):
      """
      Add label to the y axis.
  
      Parameters
      ----------
      label : str
          The text for the y axis label.
  
      Returns
      -------
      `FeatureSpec`
          Axis label specification.
  
      Examples
      --------
      .. jupyter-execute::
          :linenos:
          :emphasize-lines: 5
          
          from lets_plot import *
          LetsPlot.setup_html()
          data = {'x': list(range(10)), 'y': list(range(10))}
          ggplot(data, aes('x', 'y')) + geom_point(aes(size='y')) + \\
              ylab('y axis label')
  
      """
      return labs(y=label)
  
imports: from .core import FeatureSpec, FeatureSpecArray
  from .scale import _scale
label_desc: Use image node_id 3 for calling a global function with example usage: ylab(label) and returns: labs