text: #ifndef _LOGGER_H
  #define _LOGGER_H
  
  #include <stdint.h>
  #include <syslog.h>
  
  int logger_init(int syslog);
  void logger_stderr(const char *msg, ...);
  void logger_log(uint32_t level, const char *msg, ...);
  
  #endif // for #ifndef _LOGGER_H
  