OptionalbitFixed points inside each bit. Present whenever bitAnchors was asked
for; anchors is empty except for bitmark input to "json" or
"jsonl" output.
OptionalbitWhere each top-level bit is in the input and in output. Present whenever bitSpans
was asked for; spans is empty for an output that is not a document
("lex", "ast", "semantic-tokens", "diagnostics", a mapping
report).
The converted output — exactly what convert returns.
What convertWithDetails returns: the output and each extra that was asked for.