import LogEventProcessor from './LogEventProcessor';
import { DiagnosticsSamplingRate } from './SpecStore';
import { StatsigOptions } from './StatsigOptions';
export declare const MAX_SAMPLING_RATE = 10000;
export interface Marker {
    key: KeyType;
    action: ActionType;
    step: StepType | null;
    value: string | number | boolean | null;
    timestamp: number;
    metadata?: MarkerMetadata;
}
export interface MarkerMetadata {
    url?: string;
}
export type ContextType = 'initialize' | 'config_sync' | 'event_logging';
export type KeyType = 'download_config_specs' | 'bootstrap' | 'get_id_list' | 'get_id_list_sources' | 'overall';
export type StepType = 'process' | 'network_request';
export type ActionType = 'start' | 'end';
type DiagnosticsMarkers = {
    initialize: Marker[];
    config_sync: Marker[];
    event_logging: Marker[];
};
export default class Diagnostics {
    markers: DiagnosticsMarkers;
    private disable;
    private logger;
    private options;
    constructor(args: {
        logger: LogEventProcessor;
        options?: StatsigOptions;
        markers?: DiagnosticsMarkers;
    });
    mark(context: ContextType, key: KeyType, action: ActionType, step?: StepType, value?: string | number | boolean, metadata?: Record<string, unknown>): void;
    addMarker(context: ContextType, marker: Marker): void;
    logDiagnostics(context: ContextType, optionalArgs?: {
        type: 'id_list' | 'config_spec' | 'initialize';
        samplingRates: DiagnosticsSamplingRate;
    }): void;
    private getShouldLogDiagnostics;
}
export {};