import type { LogObject, ConsolaReporter, FormatOptions, ConsolaOptions } from 'consola';
/**
 * This custom Consola reporter formats log objects in a JSON string.
 * It is a modified version of the built-in BasicReporter
 * https://github.com/unjs/consola/blob/main/src/reporters/basic.ts
 */
export declare class JSONReporter implements ConsolaReporter {
    formatStack(stack: string, message: string, opts: FormatOptions): string;
    formatError(err: object, opts: FormatOptions): string;
    formatArgs(args: unknown[], opts: FormatOptions): string;
    formatDate(date: Date, opts: FormatOptions): string;
    filterAndJoin(arr: (string | undefined | null)[]): string;
    formatLogObj(logObj: LogObject, opts: FormatOptions): string;
    log(logObj: LogObject, ctx: {
        options: ConsolaOptions;
    }): boolean;
}