Renders the supplied label into a _:-prefixed token. With no argument, mints a fresh token with a random label for
an anonymous node; supply a label only where blank-node identity must be correlated within a single document.
Parameters
Optionallabel: string|number
The blank-node label: a non-negative integer, or a string matching BlankPattern; omitted to
mint a fresh anonymous node
Returns `_:${string}`
The blank-node label
Throws
RangeError if label is a negative or non-integer number, or a malformed string label
Constructs an RDF blank node.
Renders the supplied label into a
_:-prefixed token. With no argument, mints a fresh token with a random label for an anonymous node; supply a label only where blank-node identity must be correlated within a single document.