import type { CliOptions } from '../types';
/**
 * Get environment variable value from multiple possible keys
 */
export declare function getEnvValue(keys: readonly string[]): string | undefined;
/**
 * Get required values from options or environment variables
 */
export declare function getRequiredValues(options: CliOptions, platform: 'github' | 'gitlab'): {
    prId: string | undefined;
    projectId: string | undefined;
    token: string | undefined;
    host: string | undefined;
};
/**
 * Validate required values and return any errors
 */
export declare function validateRequiredValues(values: ReturnType<typeof getRequiredValues>): string[];
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