Tracker Identifier Collection

The complete target URL. To make the related call, combine the method with this link, in [URI template format](https://tools.ietf.org/html/rfc6570). Include the `$`, `(`, and `)` characters for pre-processing. The `href` is the key HATEOAS component that links a completed call with a subsequent call.

The [link relation type](https://tools.ietf.org/html/rfc5988#section-4), which serves as an ID for a link that unambiguously describes the semantics of the link. See [Link Relations](https://www.iana.org/assignments/link-relations/link-relations.xhtml).

The HTTP method required to make the related call.