/**
 * Generates a new migration file with sql needs to be executed to update schema.
 */
export declare class MigrationGenerateCommand {
    command: string;
    describe: string;
    builder(yargs: any): any;
    handler(argv: any): Promise<void>;
    /**
     * Gets contents of the migration file.
     */
    protected static getTemplate(name: string, timestamp: number, upSqls: string[], downSqls: string[]): string;
}