import { ShellRunner } from './shell_runner.js';
export declare class Helm extends ShellRunner {
    private readonly osPlatform?;
    private readonly helmPath;
    constructor(osPlatform?: NodeJS.Platform);
    /**
     * Prepare a `helm` shell command string
     * @param action - represents a helm command (e.g. create | install | get )
     * @param args - args of the command
     */
    prepareCommand(action: string, ...args: string[]): string;
    /**
     * Invoke `helm install` command
     * @param args - args of the command
     * @returns console output as an array of strings
     */
    install(...args: string[]): Promise<string[]>;
    /**
     * Invoke `helm uninstall` command
     * @param args - args of the command
     * @returns console output as an array of strings
     */
    uninstall(...args: string[]): Promise<string[]>;
    /**
     * Invoke `helm upgrade` command
     * @param args - args of the command
     * @returns console output as an array of strings
     */
    upgrade(...args: string[]): Promise<string[]>;
    /**
     * Invoke `helm list` command
     * @param args - args of the command
     * @returns console output as an array of strings
     */
    list(...args: string[]): Promise<string[]>;
    /**
     * Invoke `helm dependency` command
     * @param subCommand - sub-command
     * @param args - args of the command
     * @returns console output as an array of strings
     */
    dependency(subCommand: string, ...args: string[]): Promise<string[]>;
    /**
     * Invoke `helm repo` command
     * @param subCommand - sub-command
     * @param args - args of the command
     * @returns console output as an array of strings
     */
    repo(subCommand: string, ...args: string[]): Promise<string[]>;
    /** Get helm version */
    version(args?: string[]): Promise<string[]>;
}