text: 
  class Value:
    def __init__(self):
      self.set_pos()
      self.set_context()
  
    def set_pos(self, pos_start=None, pos_end=None):
      self.pos_start = pos_start
      self.pos_end = pos_end
      return self
  
    def set_context(self, context=None):
      self.context = context
      return self
  
    def added_to(self, other):
      return None, self.illegal_operation(other)
  
    def subbed_by(self, other):
      return None, self.illegal_operation(other)
  
    def multed_by(self, other):
      return None, self.illegal_operation(other)
  
    def dived_by(self, other):
      return None, self.illegal_operation(other)
  
    def powed_by(self, other):
      return None, self.illegal_operation(other)
  
    def get_comparison_eq(self, other):
      return None, self.illegal_operation(other)
  
    def get_comparison_ne(self, other):
      return None, self.illegal_operation(other)
  
    def get_comparison_lt(self, other):
      return None, self.illegal_operation(other)
  
    def get_comparison_gt(self, other):
      return None, self.illegal_operation(other)
  
    def get_comparison_lte(self, other):
      return None, self.illegal_operation(other)
  
    def get_comparison_gte(self, other):
      return None, self.illegal_operation(other)
  
    def anded_by(self, other):
      return None, self.illegal_operation(other)
  
    def ored_by(self, other):
      return None, self.illegal_operation(other)
  
    def notted(self, other):
      return None, self.illegal_operation(other)
  
    def execute(self, args):
      return RTResult().failure(self.illegal_operation())
  
    def copy(self):
      raise Exception('No copy method defined')
  
    def is_true(self):
      return False
  
    def illegal_operation(self, other=None):
      if not other: other = self
      return RTError(
        self.pos_start, other.pos_end,
        'Illegal operation',
        self.context
      )
  
  