text: # exdoc_example.py
  # Copyright (c) 2013-2019 Pablo Acosta-Serafini
  # See LICENSE for details
  # pylint: disable=C0111,W0613
  
  from pexdoc import contract
  
  
  @contract(number="int|float", frac_length="int,>=0", rjust=bool)
  def peng(number, frac_length, rjust=True):
      return str(number)
  