export declare const LOGGER_PROGRESS_TEXTURE_DOWNLOAD = "Texture download";
export type CTLoggerOptions = {
    important?: boolean;
};
export type CTLoggerProgressOptions = CTLoggerOptions | {
    id?: string;
    min?: number;
    max?: number;
};
export type CTLoggerFunction = (message: string, options?: CTLoggerOptions | any | undefined) => void;
export type CTLoggerProgressFunction = (message: string, value: number, options?: CTLoggerProgressOptions | any | undefined) => void;
export declare class CTLogger {
    private static instance;
    private log;
    private warn;
    private error;
    private info;
    private progress;
    private constructor();
    static getInstance(): CTLogger;
    static setSilent(): void;
    static setSilentButErrors(): void;
    static setDefault(): void;
    static setInstance(log: CTLoggerFunction, warn: CTLoggerFunction, error: CTLoggerFunction, info: CTLoggerFunction, progress: CTLoggerProgressFunction): void;
    static log(message: string, options?: CTLoggerOptions | any): void;
    static warn(message: string, options?: CTLoggerOptions | any): void;
    static error(message: string, options?: CTLoggerOptions | any): void;
    static info(message: string, options?: CTLoggerOptions | any): void;
    static progress(name: string, value: number, options?: CTLoggerProgressOptions): void;
}