/**
 * Detects Zod (v4+) schemas and converts them to JSON Schema before transmission.
 * The `zod` package is loaded lazily via dynamic import so consumers that never
 * pass a Zod schema are not forced to install it.
 */
export type ZodSchemaInput = {
    readonly _zod: unknown;
} | {
    readonly _def: unknown;
};
export declare function convertSchemaInputFields<T extends object | undefined>(body: T, fields: readonly string[]): Promise<T>;
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