import { Tree } from '@angular-devkit/schematics';
import * as ts from 'typescript';
import { Controller, Type } from '../models';
export declare function interpolate(text: string, ...params: (string | number | boolean)[]): string;
export declare function isNullOrUndefined(value: any): value is null | undefined;
export declare function readFileInTree(tree: Tree, filePath: string): ts.SourceFile;
export declare function removeDefaultPlaceholders<T extends {
    [key: string]: any;
}>(oldParams: T): T;
export declare function sanitizeControllerTypeNames(controllers: Record<string, Controller>): Record<string, Controller>;
export declare function sanitizeTypeNames(types: Record<string, Type>): Record<string, Type>;