import { ValidatorOptions } from "@nestjs/class-validator";
import { ClassTransformOptions } from "@nestjs/class-transformer";
export declare type ClassType<T> = new (...args: any[]) => T;
export interface TransformValidationOptions {
    validator?: ValidatorOptions;
    transformer?: ClassTransformOptions;
}
/**
 * Asynchronously converts JSON string to class (constructor) object.
 * Reject the promise if the object parsed from string doesn't pass validation.
 *
 * @param {ClassType<T>} classType The Class to parse and convert JSON to
 * @param {string} jsonString The string containing JSON
 * @param {TransformValidationOptions} [options] Optional options object for class-validator and class-transformer
 * @returns {Promise<T|T[]>} Promise of object of given class T or array of objects given class T
 */
export declare function transformAndValidate<T extends object>(classType: ClassType<T>, jsonString: string, options?: TransformValidationOptions): Promise<T | T[]>;
/**
 * Asynchronously converts array of plain objects to array of class (constructor) objects.
 * Reject the promise if any of the objects in array doesn't pass validation.
 *
 * @param {ClassType<T>} classType The Class to convert object to
 * @param {object} array The array of objects to instantiate and validate
 * @param {TransformValidationOptions} [options] Optional options object for class-validator and class-transformer
 * @returns {Promise<T>} Promise of object of given class T
 */
export declare function transformAndValidate<T extends object>(classType: ClassType<T>, array: object[], options?: TransformValidationOptions): Promise<T[]>;
/**
 * Asynchronously converts plain object to class (constructor) object.
 * Reject the promise if the object doesn't pass validation.
 *
 * @param {ClassType<T>} classType The Class to convert object to
 * @param {object} object The object to instantiate and validate
 * @param {TransformValidationOptions} [options] Optional options object for class-validator and class-transformer
 * @returns {Promise<T>} Promise of object of given class T
 */
export declare function transformAndValidate<T extends object>(classType: ClassType<T>, object: object, options?: TransformValidationOptions): Promise<T>;
/**
 * Synchronously converts JSON string to class (constructor) object.
 * Throws error if the object parsed from string doesn't pass validation.
 *
 * @param {ClassType<T>} classType The Class to parse and convert JSON to
 * @param {string} jsonString The string containing JSON
 * @param {TransformValidationOptions} [options] Optional options object for class-validator and class-transformer
 * @returns {T|T[]} Object of given class T or array of objects given class T
 */
export declare function transformAndValidateSync<T extends object>(classType: ClassType<T>, jsonString: string, options?: TransformValidationOptions): T | T[];
/**
 * Synchronously converts array of plain objects to array of class (constructor) objects.
 * Throws error if any of the objects in array doesn't pass validation.
 *
 * @param {ClassType<T>} classType The Class to convert object to
 * @param {object} array The array of objects to instantiate and validate
 * @param {TransformValidationOptions} [options] Optional options object for class-validator and class-transformer
 * @returns {T[]} Array of objects of given class T
 */
export declare function transformAndValidateSync<T extends object>(classType: ClassType<T>, array: object[], options?: TransformValidationOptions): T[];
/**
 * Synchronously converts plain object to class (constructor) object.
 * Throws error if the object doesn't pass validation.
 *
 * @param {ClassType<T>} classType The Class to convert object to
 * @param {object} object The object to instantiate and validate
 * @param {TransformValidationOptions} [options] Optional options object for class-validator and class-transformer
 * @returns {T} Object of given class T
 */
export declare function transformAndValidateSync<T extends object>(classType: ClassType<T>, object: object, options?: TransformValidationOptions): T;