import type { BabelParserProjectOptions } from "../../types/parsers/babelParserProjectOptions";
export declare function readBabelParserFromProcessEnv(): BabelParserProjectOptions | undefined;
export declare function mergeBabelParserLayers(...layers: Array<BabelParserProjectOptions | undefined>): BabelParserProjectOptions | undefined;
export declare function appendOptionalBabelSyntaxPlugins(basePlugins: unknown[], babelParser?: BabelParserProjectOptions): unknown[];
export declare function buildModuleScriptBabelPlugins(isTS: boolean, hasJsx: boolean, babelParser?: BabelParserProjectOptions): unknown[];
export declare function buildVueSfcScriptBabelPlugins(babelParser?: BabelParserProjectOptions): unknown[];
