old_contents: class Stack(object):
      def __init__(self, stack=None):
          self.stack = stack if stack else []
  
      def push_frame(self, function_name, *args):
          self.stack.append(Frame(function_name, *args))
  
      def remove(self, item):
          self.stack.remove(item)
  
      def __str__(self):
          return str(self.stack)
  
      def __repr__(self):
          return 'Stack({0!r})'.format(self.stack)
  
  
  class Frame(object):
      def __init__(self, function_name, *args, **kwargs):
          self.function_name = function_name
          self.args = kwargs.get('args', args)
          self.executed = kwargs.get('executed', False)
  
      def __str__(self):
          return 'Frame({0})'.format(self.function_name)
  
      def __repr__(self):
          return 'Frame({0}, {1})'.format(self.function_name, self.args)
  
new_contents: class Stack(object):
      def __init__(self, stack=None):
          self.stack = stack if stack else []
  
      def push_frame(self, function_name, *args):
          self.stack.append(Frame(function_name, *args))
  
      def remove(self, item):
          self.stack.remove(item)
  
      def __str__(self):
          return str(self.stack)
  
      def __repr__(self):
          return 'Stack({0!r})'.format(self.stack)
  
  
  class Frame(object):
      def __init__(self, function_name, *args, **kwargs):
          self.function_name = function_name
          self.args = kwargs.get('args', args)
          self.executed = kwargs.get('executed', False)
  
      def __str__(self):
          return 'Frame({0})'.format(self.function_name)
  
      def __repr__(self):
          return 'Frame({0}, args={1})'.format(self.function_name, self.args)
  
subject: Fix repr to include args as kwargs.