Raises event that property value has changed for provided property name.

        :param str property_name:
            Name of property whose value has changed.

def RaisePropertyChanged(self, property_name):
        '''
        Raises event that property value has changed for provided property name.

        :param str property_name:
            Name of property whose value has changed.
        '''
        args = PropertyChangedEventArgs(property_name)
        for handler in self.property_chaged_handlers:
            handler(self, args)