import type { JSONSchema7 } from './_types/@types_json-schema/index.d.ts';
import type { Targets } from 'zod-to-json-schema';
/**
 * Recursively ensures all properties in an object schema are included in the `required` array.
 * OpenAI's strict structured output mode requires every key in `properties` to also appear in `required`.
 *
 * @param schema - The JSON Schema to process
 * @returns A new schema with all properties marked as required
 */
export declare function ensureAllPropertiesRequired(schema: JSONSchema7): JSONSchema7;
/**
 * Prepare a JSON Schema for OpenAI strict mode by ensuring all object properties
 * are required and all objects have additionalProperties: false.
 */
export declare function prepareJsonSchemaForOpenAIStrictMode(schema: JSONSchema7): JSONSchema7;
export declare function zodToJsonSchema(zodSchema: any, target?: Targets, strategy?: 'none' | 'seen' | 'root' | 'relative'): JSONSchema7;
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