code: def item_frequency(
      sa,
      xlabel=LABEL_DEFAULT,
      ylabel=LABEL_DEFAULT,
      title=LABEL_DEFAULT,
  ):
      """
      Plots an item frequency of the sarray provided as input, and returns the
      resulting Plot object.
  
      The function supports SArrays with dtype str.
  
      Parameters
      ----------
      sa : SArray
        The data to get an item frequency for. Must have dtype str
      xlabel : str (optional)
        The text label for the X axis. Defaults to "Values".
      ylabel : str (optional)
        The text label for the Y axis. Defaults to "Count".
      title : str (optional)
        The title of the plot. Defaults to LABEL_DEFAULT. If the value is
        LABEL_DEFAULT, the title will be "<xlabel> vs. <ylabel>". If the value
        is None, the title will be omitted. Otherwise, the string passed in as the
        title will be used as the plot title.
  
      Returns
      -------
      out : Plot
        A :class: Plot object that is the item frequency plot.
  
      Examples
      --------
      Make an item frequency of an SArray.
  
      >>> x = turicreate.SArray(['a','ab','acd','ab','a','a','a','ab','cd'])
      >>> ifplt = turicreate.visualization.item_frequency(x)
      """
      if (
          not isinstance(sa, tc.data_structures.sarray.SArray)
          or sa.dtype != str
      ):
          raise ValueError(
              "turicreate.visualization.item_frequency supports "
              + "SArrays of dtype str"
          )
      title = _get_title(title)
      plt_ref = tc.extensions.plot_item_frequency(
          sa, xlabel, ylabel, title
      )
      return Plot(_proxy=plt_ref)
  
file_path: turicreate/src/python/turicreate/visualization/show.py
imports: from __future__ import print_function
  from __future__ import division
  from __future__ import absolute_import
  from ._plot import Plot, LABEL_DEFAULT
  import turicreate
label_desc: Use image node_id 10 for calling a global function with example usage: item_frequency(sa, xlabel, ylabel, title) and returns: Plot