/**
 * Assertions for validating DigitalOcean App Platform YAML output
 */
/**
 * Asserts that the DigitalOcean YAML has the correct structure
 * @param doYaml The parsed DigitalOcean YAML template
 * @throws Error if the validation fails
 */
export declare function assertDigitalOceanYamlStructure(doYaml: any): void;
/**
 * Validates that the environment variables in the DigitalOcean YAML match expected values
 * @param doYaml The parsed DigitalOcean YAML template
 * @param serviceName Name of the service to check
 * @param expectedEnvVars The expected environment variables
 * @returns true if validation passes, false otherwise
 */
export declare function validateEnvironmentVariables(doYaml: any, serviceName: string, expectedEnvVars: Record<string, string>): boolean;
/**
 * Validates that the service has port configuration
 * @param doYaml The parsed DigitalOcean YAML template
 * @param serviceName Name of the service to check
 * @param expectedPort The expected port number
 * @returns true if validation passes, false otherwise
 */
export declare function validatePortMapping(doYaml: any, serviceName: string, expectedPort: number): boolean;
/**
 * Validates that the volume mount exists in the service
 * Note: DigitalOcean App Platform has limited volume support compared to Render
 * This function checks for the presence of expected environment variables that
 * would typically be used as mount points
 *
 * @param doYaml The parsed DigitalOcean YAML template
 * @param serviceName Name of the service to check
 * @param mountPath Path that would be mounted
 * @returns true if environment variables exist that suggest volume access, false otherwise
 */
export declare function validateVolumeMounting(doYaml: any, serviceName: string, mountPath: string): boolean;
/**
 * Validates that a database service exists
 * @param doYaml The parsed DigitalOcean YAML template
 * @param dbType The expected database type (PG, MYSQL, REDIS, etc.)
 * @returns true if a database with the matching type exists, false otherwise
 */
export declare function validateDatabaseService(doYaml: any, dbType: string): boolean;