import { ProcessRenderer } from "../../../rendering/process/process.js";
export declare function collectEnvironment(base: NodeJS.ProcessEnv, envFile: string): Promise<Record<string, string | undefined>>;
/**
 * Fills in missing environment variables in the base environment.
 *
 * This is done by checking for special placeholder values:
 *
 * - `__PROMPT__`: prompts the user to input a value.
 * - `__GENERATE__`: generates a random base64-encoded string.
 */
export declare function fillMissingEnvironmentVariables(base: NodeJS.ProcessEnv, renderer: ProcessRenderer): Promise<Record<string, string | undefined>>;