@classmethod<EOL><INDENT>def get(cls, backend_id):<DEDENT>
for backend_class in cls._get_backends_classes():<EOL><INDENT>if backend_class.id == backend_id:<EOL><INDENT>return backend_class.create()<EOL><DEDENT><DEDENT>raise InvalidBackendError(<EOL>cls.backend_type,<EOL>backend_id,<EOL>get_installed_pools()[cls.backend_type]<EOL>)<EOL>
Return an instance of backend type