import { UnprocessableEntityException } from '@nestjs/common';
/**
 * BadBodyException
 *
 * Custom exception extending NestJS's `UnprocessableEntityException`.
 * This exception should be thrown when the request body fails validation
 * or cannot be interpreted correctly by the server.
 *
 * Typical scenarios include:
 * - Missing required fields
 * - Incorrect or unexpected data types
 * - Values violating schema constraints or business rules
 *
 * By encapsulating this exception, we provide a clear and consistent
 * mechanism for handling client input errors across the application.
 */
export declare class BadBodyException extends UnprocessableEntityException {
    /**
     * Constructs a new `BadBodyException`.
     *
     * @param {string} [message] - Optional custom error message for additional context.
     * Defaults to a standardized message if not provided.
     */
    constructor(message?: string);
}
/**
 * ApiBadBodyResponse
 *
 * Swagger documentation decorator for `422 Unprocessable Entity` responses.
 * Apply this to routes that may reject invalid or malformed request bodies.
 * This ensures the generated API documentation communicates the validation
 * expectations and error conditions to API consumers.
 *
 * @param {string} [description] - Optional custom description for the response.
 * Defaults to a standardized message if not provided.
 * @returns {MethodDecorator} - Swagger method decorator marking the response.
 */
export declare function ApiBadBodyResponse(description?: string): MethodDecorator;