code: def _fixup_belief(cls, belief):
          
          extra = {}
          belief = belief.lower()
  
          if ' ' in belief:
              belief = belief.replace(' ', '_')
  
          if belief.endswith("*"):
              belief = belief[:-1]
              extra['multiple'] = True
  
          # check for invalid characters in the belief which is used as a property name
          if re.match('^[\w-]+$', belief) is None:
              raise DogmaMetaClassException('''blasphemous belief! (property name: '%s') - even god can not make properties with non-alpha-numeric symbols or whitespace''' % belief)
  
          if belief.startswith('_'):
              raise DogmaMetaClassException('''Blasphemous belief! (property name: '%s') - even god can not make properties that start with an underscore''' % belief)
  
          return belief, extra
docs: Transforms beliefs into valid strings if possible and parses any options.
  
          Beliefs will always be lowercased.
          If it has spaces, they are converted to underscores ex: "Sensor Names" -> "sensor_names"
  
          Options:
              Multiple values: a belief with a suffix of "*" will allow multiple values returned from the get
                               when used with MultipleXmlDogma.