def init_app(self, app):
self.__init__(aws_access_key_id=app.config.get("<STR_LIT>"),<EOL>aws_secret_access_key=app.config.get("<STR_LIT>"),<EOL>region=app.config.get("<STR_LIT>", "<STR_LIT>"),<EOL>sender=app.config.get("<STR_LIT>", None),<EOL>reply_to=app.config.get("<STR_LIT>", None),<EOL>template=app.config.get("<STR_LIT>", None),<EOL>template_context=app.config.get("<STR_LIT>", {})<EOL>)<EOL>
For Flask using the app config