import { FlagsConfig } from '@salesforce/command';
import { Dictionary } from '@salesforce/ts-types';
import { CircleCiEnvvars, EnvvarModificationStatus } from '../../../circleCiEnvvars';
export declare type CircelCIEnvvarUpdateStatus = Dictionary<string | EnvvarModificationStatus[]>;
export default class CircleCIEnvvarUpdate extends CircleCiEnvvars {
    static readonly description: string;
    static readonly examples: string[];
    static readonly flagsConfig: FlagsConfig;
    run(): Promise<CircelCIEnvvarUpdateStatus>;
    isPipedIn(): Promise<boolean>;
    readPipedInput(): Promise<string>;
    private updateEnvvars;
    private updateEnvvar;
}