pub const NO_MODE: u16 = u16::MAX; // 65_535u16Expand description
RungSpec::mode for a rung that is not a contract mode (a reaction that
is a single path has one rung, named after the path).
pub const NO_MODE: u16 = u16::MAX; // 65_535u16RungSpec::mode for a rung that is not a contract mode (a reaction that
is a single path has one rung, named after the path).