import { Spawner } from '../spawner/types';
export declare const ACTIVATE: string;
export declare function AppInstaller(target: Spawner): {
    installSource: (source: Spawner) => Promise<void>;
    installModels: (models: {
        [x: string]: string;
    } | undefined) => Promise<{
        changed: boolean;
    }>;
    installVirtualenv: () => Promise<{
        changed: boolean;
    }>;
    installPythonDeps: () => Promise<boolean>;
};
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