original_docstring: 
          A valid postcode should be 6 digits
          
docstring: A valid postcode should be 6 digits
docstring_tokens: A valid postcode should be 6 digits
code: def length_validator(postcode):
          '''
          A valid postcode should be 6 digits
          '''
          MANDITORY_LENGTH = 6
          if len(postcode) != MANDITORY_LENGTH:
              return False
          return func(postcode)
code_tokens: def length_validator ( postcode ) : MANDITORY_LENGTH = 6 if len ( postcode ) != MANDITORY_LENGTH : return False return func ( postcode )
short_docstring: A valid postcode should be 6 digits
short_docstring_tokens: A valid postcode should be 6 digits
comment: '''
          A valid postcode should be 6 digits
          '''