Generate shared s3 application bucket name.

        Args:
            include_region (bool): Include region in the name generation.

def shared_s3_app_bucket(self, include_region=False):
        """Generate shared s3 application bucket name.

        Args:
            include_region (bool): Include region in the name generation.
        """
        if include_region:
            shared_s3_app_bucket = self.format['shared_s3_app_region_bucket'].format(**self.data)
        else:
            shared_s3_app_bucket = self.format['shared_s3_app_bucket'].format(**self.data)
        return shared_s3_app_bucket