Optionalcontent?: booleanTreat a string source as raw content, never as a path (alias of mode: 'text').
Optionalencoding?: stringText encoding when reading bytes/files (default utf-8).
Optionalfloors?: IoPolicy[]Additional policy floors — a Session's policy, for instance. Every floor is enforced like the
process-wide one (each must pass; byte caps and timeouts take the minimum), and per-call fields
cannot widen any of them.
Optionalmode?: IoSourceModeInterpret a bare string as content / path / URL instead of guessing (default 'auto').
Options shared by every reader that resolves an
IoSource.