/**
 * Envelope Indicator
 *
 * Price envelope with a moving average basis and upper/lower bands
 * at a fixed percentage distance from the basis.
 */
import { type IndicatorResult, type InputConfig, type PlotConfig, type Bar, type SourceType } from 'oakscriptjs';
export interface EnvelopeInputs {
    /** Period length */
    length: number;
    /** Percent distance for bands */
    percent: number;
    /** Price source */
    src: SourceType;
    /** Use exponential MA */
    exponential: boolean;
}
export declare const defaultInputs: EnvelopeInputs;
export declare const inputConfig: InputConfig[];
export declare const plotConfig: PlotConfig[];
export declare const metadata: {
    title: string;
    shortTitle: string;
    overlay: boolean;
};
export declare function calculate(bars: Bar[], inputs?: Partial<EnvelopeInputs>): IndicatorResult;
export declare const Envelope: {
    calculate: typeof calculate;
    metadata: {
        title: string;
        shortTitle: string;
        overlay: boolean;
    };
    defaultInputs: EnvelopeInputs;
    inputConfig: InputConfig[];
    plotConfig: PlotConfig[];
};
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