get-binding-name

The binding this call arrived on: the (implements <name>) label the caller imported this plugin's interface under, or none for a plain, unlabeled import. The label is the name an operator declares under a host.plugins entry's bindings, and the name the matching workload-lifecycle.interface-binding carried at bind time, so it pairs a call with that binding's configuration.

A label equal to the plugin's own id addresses the plugin rather than one of its bindings and reads as none. A lifecycle hook reads none too: it is about a whole workload, so read workload-info there.