The (key, id?) a binding gives the node nodeId, if its shape addresses that node: the reverse of
forward resolution, minus the workspace. A singleton has no id; a resolver-backed item keeps its last
segment; any other item joins the segments after path with the tail separator.
The
(key, id?)a binding gives the nodenodeId, if its shape addresses that node: the reverse of forward resolution, minus the workspace. A singleton has no id; a resolver-backed item keeps its last segment; any other item joins the segments afterpathwith the tail separator.