import * as Effect from 'effect/Effect';
import type * as jwt from 'jsonwebtoken';
export type JwtPayloadSubIss = jwt.JwtPayload & {
    readonly sub: string;
    readonly iss: string;
};
export type JwtUserContext = {
    readonly verified: false;
    readonly reason?: string;
} | ({
    readonly verified: true;
    readonly userId: string;
} & JwtPayloadSubIss);
export declare function JwtUserContext(verified: false, reason?: string): JwtUserContext;
export declare function JwtUserContext(verified: true, jwtPayload: JwtPayloadSubIss): JwtUserContext;
export declare function checkJwtPayloadIssSub(payload: jwt.JwtPayload | string | null): Effect.Effect<JwtPayloadSubIss, Error>;
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