pub fn normalize(input: &str, options: Option<String>) -> Option<String>Expand description
Deterministic prose-date normalization (“1980s” → 198X) as a JSON string.
Always returns a value for valid options (a noMatch object with a
reason when nothing can be produced); undefined only for invalid
options — malformed JSON, unknown keys, or out-of-domain values. An
empty/whitespace options string means defaults. See NormalizeSummary
for the object shape.