/**
 * Format a table with aligned columns for terminal output.
 */
export declare function formatTable(headers: string[], rows: string[][]): string;
/**
 * Format a JSON value for display.
 * Short values are shown inline, complex values are pretty-printed.
 */
export declare function formatValue(value: unknown): string;
/**
 * Summarize triggers for a compact list view.
 */
export declare function summarizeTriggers(triggers: {
    type: string;
    [key: string]: unknown;
}[]): string;
/**
 * Format trigger details for the automation detail view.
 */
export declare function formatTrigger(trigger: {
    type: string;
    [key: string]: unknown;
}): string;
/**
 * Format a device for the detail view (one-shot CLI).
 */
export declare function formatDevice(device: {
    friendly_name: string;
    nice_name: string;
    ieee_address: string;
    type: string;
    supported: boolean;
    interview_state: string;
    power_source?: string | null;
    state: Record<string, unknown> | null;
    definition: {
        model: string;
        vendor: string;
        description: string;
    } | null;
}): string;
/**
 * Format a log entry for terminal display.
 */
export declare function formatLogEntry(entry: {
    level: number;
    time: number;
    msg: string;
    [key: string]: unknown;
}): string;
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