export declare const MULTIPROVIDER_SESSION_PIN_ENTRY_TYPE = "pi-multiprovider:switch-account";
export declare const MULTIPROVIDER_SESSION_PIN_ENV = "PI_MULTIPROVIDER_SESSION_PINS";
/** Parent /switch-account decision rebound onto a child session. */
export interface InheritedSessionPin {
    pool: string;
    /** Pinned account; omitted means an explicit return to automatic selection. */
    accountId?: string;
    label?: string;
}
/** Latest inherited pin per pool; foreign and malformed records are dropped. */
export declare const inheritedSessionPinsFromUnknown: (value: unknown) => InheritedSessionPin[];
export declare const inheritedSessionPinsFromEntries: (entries: Iterable<unknown>) => InheritedSessionPin[];
export declare const inheritedSessionPinsFromEnv: (env?: NodeJS.ProcessEnv) => InheritedSessionPin[];
export declare const serializeInheritedSessionPins: (pins: readonly InheritedSessionPin[]) => string;
/**
 * Session journal wins when the parent recorded a /switch-account decision.
 * Otherwise a nested Fabric child reuses PI_MULTIPROVIDER_SESSION_PINS.
 */
export declare const resolveInheritedSessionPins: (entries?: Iterable<unknown>, env?: NodeJS.ProcessEnv) => InheritedSessionPin[] | undefined;
export declare const withInheritedSessionPins: <T extends {
    inheritedSessionPins?: InheritedSessionPin[];
}>(request: T, entries: Iterable<unknown>, env?: NodeJS.ProcessEnv) => T;
export declare const inheritedSessionPinEnvironment: (pins: InheritedSessionPin[] | undefined) => Record<string, string>;
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