import { ServiceConfig } from '../types';
/**
 * Environment variable management for services
 */
export declare class EnvironmentManager {
    /**
     * Generate environment variables for a service based on its dependencies
     */
    static generateEnvironmentVars(service: ServiceConfig, dependencies: Map<string, {
        host: string;
        port: number;
        env: Record<string, string>;
    }>): Record<string, string>;
    /**
     * Add environment variables for a specific dependency
     */
    private static addDependencyEnvVars;
    /**
     * Get default environment variables for a database service
     */
    static getDefaultDatabaseEnv(type: string): Record<string, string>;
    /**
     * Merge environment variables with defaults
     */
    static mergeWithDefaults(customEnv?: Record<string, string>, defaultEnv?: Record<string, string>): Record<string, string>;
}
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