Inspect parsed rows against the registered contract for path. Returns the input unchanged on success. Throws CsvContractError on any violation. If no contract is registered for path, validation is skipped (returns input).
path
CsvContractError
Optional
Inspect parsed rows against the registered contract for
path. Returns the input unchanged on success. ThrowsCsvContractErroron any violation. If no contract is registered forpath, validation is skipped (returns input).