The rule in words without its values, for logs and telemetry, e.g. SHIP_COUNTRY is ?
The rule in words, values included, e.g. SHIP_COUNTRY is "France"
Checks the rule against the input schema, appending a message to errors for each problem
Optionalerrors: string[]
A rule this version can't read, e.g. one saved by a newer version with an operator added since (PLAN ยง10.3, Settled in M1.6). It keeps the JSON it was saved as, so re-saving writes it back as it was, and it is never valid.