text: #ifndef FirebaseFS_H
  #define FirebaseFS_H
  #include <Arduino.h>
  
  #define FIREBASE_ESP_CLIENT 1
  
  /**
   * To use other flash file systems
   * 
   * LittleFS File system
   * 
   * #include <LittleFS.h>
   * #define DEFAULT_FLASH_FS LittleFS //For ESP8266 LitteFS
   * 
   * 
   * FFat File system
   * 
   * #include <FFat.h>
   * #define DEFAULT_FLASH_FS FFat  //For ESP32 FFat
   * 
  */
  #define DEFAULT_FLASH_FS SPIFFS
  
  /**
   * To use SD card file systems with different hardware interface
   * e.g. SDMMC hardware bus on the ESP32
   * https://github.com/espressif/arduino-esp32/tree/master/libraries/SD#faq
   * 
   #include <SD_MMC.h>
   #define DEFAULT_SD_FS SD_MMC //For ESP32 SDMMC
   #define CARD_TYPE_SD_MMC 1 //For ESP32 SDMMC
   * 
  */
  #define DEFAULT_SD_FS SD
  #define CARD_TYPE_SD 1
  
  //For ESP32, format SPIFFS or FFat if mounting failed
  #define FORMAT_FLASH_IF_MOUNT_FAILED 1
  
  #endif