code: function connection() {
    return {
      ssl: JSON.parse(JSON.stringify(process.env.DATABASE_SSL || "")),
      host: process.env.DATABASE_HOST || "localhost",
      user: process.env.DATABASE_USER || "",
      charset: process.env.DATABASE_CHARSET || "utf8",
      password: process.env.DATABASE_PASS || "",
      database: process.env.DATABASE_NAME || ""
    };
  }
docs: Return connection configuration.