class_docstr: Independent Joint Distribution 
docstr: Returns the list of random variables 
code: def get_rv_s(self):
      """Returns the list of random variables"""
      return self.rv_s
  
file_path: dragonfly/dragonfly/distributions/product.py
imports: from __future__ import absolute_import
  import numpy
  from .distribution import Distribution
label_desc: Use image node_id 2 for calling the JointDistribution obj's underlying member method code with example usage: obj.get_rv_s() and returns: self