docstr: A proxy-call to the dataframe's `.value_counts()`.
code: def value_counts(self):
      """
      A proxy-call to the dataframe's `.value_counts()`.
      """
      return self.dataframe.value_counts()
  
imports: from abc import ABC
label_desc: Use image node_id 37 for calling the DataframeAbstract obj's underlying member method code with example usage: obj.value_counts() and returns: self