/** Pure: pick which ref to use, given the precedence inputs. Throws if a ref
 * cannot be determined. `connected` is the list of currently-attached
 * device addresses (from `adb devices`). */
export declare function selectRef(cliDevice: string | undefined, envDevice: string | undefined, configDevice: string | undefined, connected: string[]): string;
/** Parse `adb devices` output into a list of attached device addresses. */
export declare function listConnected(): Promise<string[]>;
export interface ResolvedDevice {
    address: string;
    serial: string;
    alias: string | undefined;
}
/** Full resolution: ref selection → alias lookup → connect → serial read. */
export declare function resolveDevice(cliDevice?: string): Promise<ResolvedDevice>;
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