Optional ReadonlyexpiresExpiry as Unix milliseconds or a Date; the server's default applies when left out.
Optional ReadonlyiconOptional semantic icon name of the design system; the server checks the name.
Optional ReadonlyrequiredA capability the person needs, for example approve_actions.
Optional Readonlyrestrictedany, run_starter or owner (09 11.2).
Optional ReadonlysettingsSource of the limits (default DEFAULTS).
Optional ReadonlysingleWhether using it disables the other single-use components of the message (09 11.3); the server's default applies when left out.
Optional ReadonlystyleOne of BUTTON_STYLES (default secondary).
Options of button.