OptionalescapeHTML-escape {{name}} values; {{{name}}} stays raw. Default false:
values are inserted as-is, so escape untrusted input with
escapeHtml yourself.
OptionalfragmentsFragment allowlist, see EngineOptions.fragments. Default: every template.
OptionalmaxRefuse template files larger than this many bytes with a TEMPLATE
error. Default DEFAULT_MAX_TEMPLATE_BYTES (1 MiB).
The template root. Every .html file under it is loaded, named by its
/-separated path relative to the root (e.g. feed/card.html).
OptionalsigningHow envelopes are signed. Default { mode: 'none' } (unsigned). The keys
are checked in Setup.run, see SignOptions.
OptionalwatchReload all templates when a file under root changes. Default false.
Options for Setup.