/**
 * Detects the installation method and runs the appropriate upgrade command.
 * Falls back to npm if detection is ambiguous.
 */
import type { ReleaseChannel } from "../config/types.milady";
export type InstallMethod = "npm-global" | "bun-global" | "homebrew" | "snap" | "apt" | "flatpak" | "local-dev" | "unknown";
export interface UpdateResult {
    success: boolean;
    method: InstallMethod;
    command: string;
    previousVersion: string;
    newVersion: string | null;
    error: string | null;
}
export declare function detectInstallMethod(): InstallMethod;
export declare function buildUpdateCommand(method: InstallMethod, channel: ReleaseChannel): {
    command: string;
    args: string[];
} | null;
export declare function performUpdate(currentVersion: string, channel: ReleaseChannel, method?: InstallMethod): Promise<UpdateResult>;
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