code: def get_value(self, property_name):
          
          log = logging.getLogger(self.cls_logger + '.get_value')
          if not isinstance(property_name, basestring):
              log.error('property_name arg is not a string, found type: {t}'.format(t=property_name.__class__.__name__))
              return None
          # Ensure a property with that name exists
          prop = self.get_property(property_name)
          if not prop:
              log.debug('Property name not found matching: {n}'.format(n=property_name))
              return None
          value = self.properties[prop]
          log.debug('Found value for property {n}: {v}'.format(n=property_name, v=value))
          return value
docs: Returns the value associated to the passed property
  
          This public method is passed a specific property as a string
          and returns the value of that property. If the property is not
          found, None will be returned.
  
          :param property_name (str) The name of the property
          :return: (str) value for the passed property, or None.