export declare const LANE_PHASE_VALUES: readonly ["name-only", "offered-by-default"];
export type LanePhase = (typeof LANE_PHASE_VALUES)[number];
export type LanePhaseFile = {
    readonly phase: LanePhase;
};
export type ReadLanePhaseResult = {
    readonly kind: 'ok';
    readonly path: string;
    readonly file: LanePhaseFile;
} | {
    readonly kind: 'missing';
    readonly path: string;
} | {
    readonly kind: 'invalid';
    readonly path: string;
    readonly message: string;
};
export declare function lanePhasePath(projectRoot: string): string;
export declare function readLanePhase(projectRoot: string): ReadLanePhaseResult;