Type Definition frame::runtime::types_common::SystemSignedExtensionsOf

pub type SystemSignedExtensionsOf<T> = (CheckNonZeroSender<T>, CheckSpecVersion<T>, CheckTxVersion<T>, CheckGenesis<T>, CheckEra<T>, CheckNonce<T>, CheckWeight<T>);

Default set of signed extensions exposed from the frame_system.

crucially, this does NOT contain any tx-payment extension.