import { BadRequestException } from '@nestjs/common';
/**
 * BadParameterException
 *
 * Custom exception extending NestJS's `BadRequestException`.
 * This exception is thrown when one or more request parameters (query,
 * route, or body) are invalid or malformed.
 *
 * Common scenarios:
 * - Query string contains unexpected or invalid values
 * - Route parameters fail validation
 * - Request body includes fields that do not conform to expected types
 *
 * By encapsulating this exception, we standardize error responses for
 * invalid parameters and provide consistent error messaging across the API.
 */
export declare class BadParameterException extends BadRequestException {
    /**
     * Constructs a new `BadParameterException`.
     *
     * @param {string} [parameter] - Optional name of the invalid parameter.
     * If provided, the message will reference that parameter directly.
     */
    constructor(parameter?: string);
}
/**
 * ApiBadParameterResponse
 *
 * Swagger documentation decorator for `400 Bad Request` responses caused
 * by invalid request parameters. This makes it explicit in API docs that
 * certain routes may reject requests with malformed or unsupported input.
 *
 * The decorator dynamically adjusts the description based on the provided
 * parameter names, making documentation precise and self-explanatory.
 *
 * @param {...string} params - One or more invalid parameter names to
 * include in the response description. If none are provided, a generic
 * description is used instead.
 * @returns {MethodDecorator} - Swagger method decorator for a 400 response.
 */
export declare function ApiBadParameterResponse(...params: string[]): MethodDecorator;