AttributeMap

A type-safe map from AttributeKey to values of types determined by the key.

An attribute is arbitrary data that is attached to some top-level sttp-defined objects. The data is not interpreted by the libraries in any way, and is passed as-is. However, built-in or user-provided extensions and integrations might use the attributes to provide their functionality.

Typically, you'll add attributes using an .attribute method on the sttp-defined object. Each attribute should correspond to a type. The type should be defined by the extension, which uses the attribute, and make it available for import.