export interface ConsentInputs {
    env: Record<string, string | undefined>;
    /** true if the config file records an explicit opt-out */
    optedOut: boolean;
    /** true for callers inside the running app (dev server); false for the CLI */
    runtime: boolean;
}
export interface ConsentResult {
    allowed: boolean;
    reason: string;
}
/** The one spelling of an env flag being on, shared by every reader. */
export declare function truthy(v: string | undefined): boolean;
/**
 * True when an environment opt-out is in effect (VENDO_TELEMETRY_DISABLED,
 * DO_NOT_TRACK, or CI). Used both by resolveConsent (to gate track()) and by
 * loadConfig (to avoid minting/persisting a tracking id the user opted out of).
 */
export declare function envOptOut(env: Record<string, string | undefined>): boolean;
export declare function resolveConsent({ env, optedOut, runtime }: ConsentInputs): ConsentResult;