text: #!/usr/bin/env python
  
  from interface import Transformer
  class PIPSTransformer(Transformer):
  	"""
  	Transformer from PIPS output
  	"""
  	def transformFile(self, input, format):
  		""" Transforms one input file to a different output file"""
  		pass
  
  	def transformString(self, input, format):
  		""" Transforms one input string to a different output string"""
  		pass
  
  	def trasformAST(self, inputast, format):
  		"""Transform from an AST to an output string"""
  		pass
  