{"ast_node_type":"other","tokens":[{"end":100,"kind":"keyword","start":0,"text":"///"}]}
/// indicate that the span has name "NAME" (usually the name of the component) and has an additional
/// the span name (i.e. the first macro argument) in the form `NAME::SUBNAME` (without quotes) to
/// more specific name "SUBNAME" (usually the function name). The latter is passed to the [tracing]