func GetBool(key string, defaultValue bool) (bool, error)
GetBool returns the env variable (parsed as bool) for the given key and falls back to the given defaultValue if not set
func GetFloat64(key string, defaultValue float64) (float64, error)
GetFloat64 returns the env variable (parsed as float64) for the given key and falls back to the given defaultValue if not set
func GetInt(key string, defaultValue int) (int, error)
GetInt returns the env variable (parsed as integer) for the given key and falls back to the given defaultValue if not set
func GetString(key, defaultValue string) string
GetString returns the env variable for the given key and falls back to the given defaultValue if not set