import { CustomBlock, BlockMutator } from '@ng-blockly/blockly';
/**
 * 自定义下拉块，可以传入参数作为extensions,来设置其field。
 */
export declare class ValuesDropDownBlock extends CustomBlock {
    jsonBlock: {};
    constructor(type: string, block: any, blockMutator: BlockMutator, ...args: any[]);
    defineBlock(): void;
    toXML(): string;
    toJavaScriptCode(e: any): any[];
}