Common config for both Firebase and Google Cloud function

For a project, I am trying to deploy Google Cloud functions as well as Firebase Cloud functions from the same file. That is, I have initiated a Firebase project and in that project file I'm trying to deploy a Google Cloud function for the same project.

The problem I'm facing is that the config for G Cloud function is to be hardcoded in the code itself because unlike Firebase Cloud functions, it is unable to get it from functions.config(). Is there a way in which we can get the config for both the platforms using a single method? Or an alternative way so that for G Cloud functions we don't have to hard code the config again and again? an example of what hard coded config means is as follows. For establishing connection to mysql-

function getMySQLConfig() {
  if (!mysqlConfig) {
    // const config = functions.config();
    //const connectionName =  config.config_server_sql.connectionName;//

    mysqlConfig = {
      // config we get from functions.config()       

      // host: config.config_server_sql.ip,
      // port: config.config_server_sql.port,
      // user: config.config_server_sql.dbUser,
      // password: config.config_server_sql.password,
      // database: config.config_server_sql.dbName,
      // multipleStatements: true,
      // charset: "utf8mb4_unicode_ci",

      //hard coded config
      dbName: "config_db",
      ip: ‘IP_ADDRESS,
      dbUser: "root",
      port: 3306,
      connectionName: ‘SAMPLE_NAME’,
      password: ‘PASSWORD’,
      ...configSetting
    };

    // mysqlConfig.socketPath = `/cloudsql/${connectionName}`;    
  }

  return mysqlConfig;
}