import { LogEntry, LogFormatter } from '../types';
export declare class SimpleTextFormatter implements LogFormatter {
    format(entry: LogEntry): string;
}
export declare class SimpleApiFormatter implements LogFormatter {
    format(entry: LogEntry): string;
    private isApiLogEntry;
}
export declare class SimpleJsonFormatter implements LogFormatter {
    format(entry: LogEntry): string;
}
export declare class SimplePerformanceFormatter implements LogFormatter {
    format(entry: LogEntry): string;
}