124 bool BoolFromEnv(const char* flag, bool default_val) {  in BoolFromEnv()  argument
127   return value_str == nullptr ? default_val : IsTruthyFlagValue(value_str);  in BoolFromEnv()
130 int32_t Int32FromEnv(const char* flag, int32_t default_val) {  in Int32FromEnv()  argument
133   int32_t value = default_val;  in Int32FromEnv()
137     return default_val;  in Int32FromEnv()
142 double DoubleFromEnv(const char* flag, double default_val) {  in DoubleFromEnv()  argument
145   double value = default_val;  in DoubleFromEnv()
149     return default_val;  in DoubleFromEnv()
154 const char* StringFromEnv(const char* flag, const char* default_val) {  in StringFromEnv()  argument
157   return value == nullptr ? default_val : value;  in StringFromEnv()
161     const char* flag, std::map<std::string, std::string> default_val) {  in KvPairsFromEnv()  argument
165   if (value_str == nullptr) return default_val;  in KvPairsFromEnv()
169     return default_val;  in KvPairsFromEnv()