import { DefineComponent, ExtractPropTypes, PropType } from 'vue';
export declare const virtualListProps: {
    readonly dataSources: {
        readonly type: PropType<any[]>;
        readonly required: true;
        readonly default: () => never[];
    };
    readonly dataKey: {
        readonly type: StringConstructor;
        readonly required: true;
        readonly default: "id";
    };
    readonly keeps: {
        readonly type: NumberConstructor;
        readonly default: 30;
    };
    readonly estimateSize: {
        readonly type: NumberConstructor;
        readonly default: 80;
    };
    readonly dataComponent: {
        readonly type: PropType<DefineComponent<{}, {}, any>>;
        readonly required: true;
    };
};
export type VirtualListProps = Partial<ExtractPropTypes<typeof virtualListProps>>;
export declare const virtualListEmits: {};
export type VirtualListEmits = typeof virtualListEmits;
export type RangeOptions = {
    start: number;
    end: number;
    padFront: number;
    padBehind: number;
};
export type VirtualOptions = {
    keeps: number;
    buffer: number;
    uniqueIds: string[];
    estimateSize: number;
};
export type updateType = (range: RangeOptions) => void;
export declare const virtualItemProps: {
    readonly uniqueKey: {
        readonly type: PropType<string | number>;
    };
    readonly source: {
        readonly type: PropType<any>;
        readonly required: true;
    };
    readonly component: {
        readonly type: PropType<DefineComponent<{}, {}, any>>;
        readonly required: true;
    };
};
export type VirtualItemProps = Partial<ExtractPropTypes<typeof virtualItemProps>>;