export interface SprintIdParts {
    /** Whole-sprint base, e.g. 458. */
    base: number;
    /** Inserted-sprint suffix as an integer (10 for ".10"), or null for a whole sprint. */
    insert: number | null;
    /** Exact fractional digits as authored ("10", "5"), or null. Preserves 458.10 vs 458.1. */
    insertDigits: string | null;
    /** Canonical string key: "458", "458.10", "143.5". */
    key: string;
}
/**
 * Canonical string key for a sprint id, or null when the value is not a valid id.
 *
 * A string is preserved exactly (after stripping a leading `S` and whitespace),
 * so trailing zeros survive. A number is rendered literally.
 */
export declare function sprintIdKey(value: string | number): string | null;
/** Parse an authored sprint id (string or number) into canonical parts, or null. */
export declare function parseSprintId(value: string | number): SprintIdParts | null;
/**
 * Order two canonical keys. A whole sprint sorts before its inserts; inserts sort
 * by their integer value, so .9 precedes .10 (not the reverse a string sort would
 * give). Distinct keys with the same numeric value (.5 vs .05) break the tie by
 * their digit string so ordering stays total.
 */
export declare function compareSprintIdKeys(a: string, b: string): number;
/** True when two authored ids denote the same sprint (exact canonical match). */
export declare function sprintIdsEqual(a: string | number, b: string | number): boolean;
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