/**
 * Transforms a flat where object with dot-notation keys into a nested object.
 * Keys without dots are passed through unchanged.
 * Handles logical operators (AND, OR) recursively.
 *
 * @param where - Where clause object potentially containing dot-notation keys
 * @returns Nested where object compatible with the GraphQL ListWhereInput type
 *
 * @example
 * transformWhereToNested({ "values.name": "Keyboard", id: "abc" })
 * // Returns: { values: { name: "Keyboard" }, id: "abc" }
 *
 * @example
 * transformWhereToNested({ "values.price_gt": 100, "values.name_contains": "board" })
 * // Returns: { values: { price_gt: 100, name_contains: "board" } }
 */
export declare const transformWhereToNested: (where?: Record<string, unknown>) => Record<string, unknown> | undefined;