import type { AxiosError, AxiosInstance, AxiosResponse } from "axios";
import type { CompiledServiceInfo, CompileUrlResult, ResponseFormat } from "../types/driver";
/** Lower-cases axios header keys, joining array values, into a plain record. */
export declare function normalizeAxiosHeaders(headers: unknown): Record<string, string> | null;
/** Adapts a raw AxiosResponse into the canonical ResponseFormat. */
export declare function axiosResponseToResponseFormat<T = unknown>(res: AxiosResponse<T>, duration: number): ResponseFormat<T>;
/** Maps an AxiosError to a standardized PROBLEM_CODE string. */
export declare function mapAxiosErrorToProblem(error: AxiosError): string;
/**
 * Executes one request through the axios instance and normalizes the result.
 * The method is resolved dynamically per call (`axiosInstance[method]`) so that
 * consumers/tests can swap `instance.get`, `instance.request`, etc. at runtime.
 */
export declare function executeAxiosCall<T>(axiosInstance: AxiosInstance, apiInfo: CompileUrlResult, serviceInfo: CompiledServiceInfo, globalTimeout: number | undefined): Promise<ResponseFormat<T>>;