import type { FormatData } from "../../types/string/formatString/formatData";
import type { FormatOptions } from "../../types/string/formatString/formatOptions";
import type { FormatValue } from "../../types/string/formatString/formatValue";
/**
 * Detects whether formatString should use indexed or named mode based on arguments.
 *
 * Named mode: First argument is a non-array object
 * Indexed mode: Arguments are treated as array values
 *
 * @param dataOrFirstValue - First argument (object for named mode, value for indexed mode)
 * @param optionsOrSecondValue - Second argument (options for named mode, value for indexed mode)
 * @param restValues - Remaining arguments for indexed mode
 * @returns Object containing data and options for formatting
 *
 * @example
 * // Named mode detection
 * detectMode({ name: "Alice" }) // → { data: { name: "Alice" }, options: {} }
 *
 * @example
 * // Indexed mode detection
 * detectMode("first", "second") // → { data: ["first", "second"], options: {} }
 */
export declare function detectMode(dataOrFirstValue: FormatData | FormatValue | undefined, optionsOrSecondValue: FormatOptions | FormatValue | undefined, restValues: FormatValue[]): {
    data: unknown;
    options: FormatOptions;
};