import type { AxiosRequestConfig } from 'axios';
import RequestBuilder from "./builder";
import Config from "./config";
export declare function normalizePath(path: string): string;
export declare function isNullOrEmpty(param: any): boolean;
type MetaPropertyDescriptor = PropertyDescriptor & {
    builder: RequestBuilder;
    config?: Config;
};
export declare function castToMetaDescriptor(descriptor: PropertyDescriptor): MetaPropertyDescriptor;
/**
 * Merges multiple Axios request configurations with specific logic for Axios.
 * - `headers` and `params` are shallowly merged.
 * - All other properties are replaced by the last provided value.
 *
 * @param sources A list of AxiosRequestConfig objects to merge.
 * @returns A new, merged AxiosRequestConfig object.
 */
export declare function mergeAxiosConfigs(...sources: AxiosRequestConfig[]): AxiosRequestConfig;
/**
 * 替换链接占位符，注意使用基本类型
 * Replaces placeholders in a URL with values from a data object.
 * e.g., formatUrl("http://a.com/{c}?d={e}", {c: 'x', e: 100}) -> "http://a.com/x?d=100"
 *
 * @param url The URL string with placeholders like {key}.
 * @param data The plain object data source.
 * @returns The formatted URL string.
 */
export declare function formatUrl(url: string, data: Record<string, any>): string;
/**
 * Checks if a value is a plain object, i.e., an object created by `{}` or `new Object()`.
 * @param value The value to check.
 * @returns True if the value is a plain object, false otherwise.
 */
export declare function isPlainObject(value: any): value is Record<string, any>;
export {};