export type PreserveReasoning = boolean | "auto";
/**
 * Wafer reasoning dialect.
 *
 * Wafer natively accepts a granular `reasoning_effort` (`none | low | medium |
 * high | max`), so — unlike the binary friendli/openrouter dialects — an
 * explicit level is forwarded verbatim instead of being collapsed to on/off:
 *  - a level string (e.g. `'high'`, or `'max'` via providerOptions)
 *      -> `reasoning_effort: <level>`
 *  - reasoning on without a level (`reasoning_effort: true`)
 *      -> `thinking: { type: 'enabled' }`
 *  - reasoning off (`'none'` / `false`)
 *      -> `thinking: { type: 'disabled' }`
 *
 * (`max` is Wafer-specific and not in the AI SDK's level set, so it is reachable
 * via `providerOptions.wafer.reasoningEffort: 'max'`.)
 */
export declare const waferReasoningTransform: (args: Record<string, unknown>) => Record<string, unknown>;
export declare function createWaferRequestTransform(preserveReasoning?: PreserveReasoning): (args: Record<string, unknown>) => Record<string, unknown>;
/**
 * Keeps a call-level `reasoning` option (including `'none'`) alive down to
 * {@link waferReasoningTransform}.
 */
export declare const waferReasoningMiddleware: import("ai").LanguageModelMiddleware;