groups: - id: registry.user_agent prefix: user_agent type: attribute_group brief: "Describes user-agent attributes." attributes: - id: original stability: stable type: string brief: > Value of the [HTTP User-Agent](https://www.rfc-editor.org/rfc/rfc9110.html#field.user-agent) header sent by the client. examples: ['CERN-LineMode/2.15 libwww/2.17b3', 'Mozilla/5.0 (iPhone; CPU iPhone OS 14_7_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/14.1.2 Mobile/15E148 Safari/604.1']