docstr: A proxy-call to the dataframe's `.abs()`.
code: def abs(self):
      """
      A proxy-call to the dataframe's `.abs()`.
      """
      return self.dataframe.abs()
  
imports: from abc import ABC
label_desc: Use image node_id 33 for calling the DataframeAbstract obj's underlying member method code with example usage: obj.abs() and returns: self