import * as cog from '../cog';
import * as common from '../common';
export declare class LineConfigBuilder implements cog.Builder<common.LineConfig> {
    protected readonly internal: common.LineConfig;
    constructor();
    /**
     * Builds the object.
     */
    build(): common.LineConfig;
    lineColor(lineColor: string): this;
    lineWidth(lineWidth: number): this;
    lineInterpolation(lineInterpolation: common.LineInterpolation): this;
    lineStyle(lineStyle: cog.Builder<common.LineStyle>): this;
    spanNulls(spanNulls: boolean | number): this;
}