import { IExecuteFunctions } from "n8n-workflow";
import { LinkupCredentials, RequestBody } from "./types";
export declare class LinkupUtils {
    static sanitizeCredentialValue(value: string): string | null;
    static getCredentialsWithFallback(context: IExecuteFunctions): Promise<LinkupCredentials>;
    static buildRequestOptions(endpoint: string, method: "POST" | "GET", apiKey: string, body: RequestBody, timeout: number): any;
    static getEndpointForOperation(operation: string): string;
}