OptionalfilesOverride file list. Pass null to clear.
OptionalfingerprintOverride fingerprint (16 bytes, or null to clear).
OptionallockOverride lock acquisition timeout in ms.
OptionalrootOverride root path. Pass true to auto-detect from files. Pass null to clear.
OptionalversionOverride cache version (u32).
Options for FileHashCache.configure — sets cache configuration. All fields are optional. Omitted fields keep the current value.