import { Request } from 'express';
import { Color, ExtendOptions, Region } from 'sharp';
import { IFastlyParams, IMutableResponse, NumericParams, Param, Warning, WarnType } from './imageopto-types';
import { Logger } from 'pino';
export default class FastlyParams implements IFastlyParams {
    get quality(): number | undefined;
    req: Request;
    res: IMutableResponse;
    log: Logger;
    private raw;
    private warnings;
    private cachedQuality;
    private rgbRE;
    constructor(params: Map<string, string | undefined>, req: Request, res: IMutableResponse);
    get(param: Param): Param;
    has(param: Param): boolean;
    warn(type: WarnType, param: Param, msg?: string): void;
    getWarnings(): Warning[];
    toNumbers(names: Param[]): NumericParams;
    toCssBox(name: Param): ExtendOptions;
    toColor(name: Param): Color;
    toTaggedValues(name: Param, positional: string[], named: string[]): {
        [key: string]: string | null;
    };
    toRegion(name: Param): Partial<Region>;
    private warnFail;
}