export declare class FileHandler { filePath: string; private _content; private importModuleRE; dirPath: string; constructor(filePath: string); readonly content: string; private resolveToFile(validPath); private getModuleNameFromImportStatement(statement); private getImporteeFiles(excludeFrom); getExternalModules(): string[]; getImporteeNames(): string[]; setContent(content: string): void; copyTo(destFilePath: string): void; hasImporters(): boolean; getImportees(excludeFrom: string[]): Promise; }