Struct DischargeAttempt 

pub struct DischargeAttempt<'a> {
    pub nonce: [u8; 32],
    pub discharge: &'a Discharge,
    pub verifier: &'a dyn DischargeVerifier,
}

A presented step-up proof, bundled: the single-use nonce the challenge was bound with, the Discharge itself, and the DischargeVerifier that checks it. Grouping the “proof” inputs keeps Gate::authorize_with_discharge to a small argument list and distinct from the “what” (tool, grant, request, policy).

Fields

nonce: [u8; 32]

The single-use nonce the challenge was bound with.

discharge: &'a Discharge

The proof produced by the host after running the ceremony.

verifier: &'a dyn DischargeVerifier

The verifier that checks the proof (pure; performs no ceremony).