GetBool returns the boolean value of the environmental variable varName if the env var is empty or not a boolean it will return false, false.

GetBytes returns the number of bytes represented by the environmental variable varName if the env var is empty or not a valid byte string it will return 0, false.

GetDuration returns the time.Duration value of the environmental variable varName if the env var is empty or not a valid duration string it will return 0, false.

GetDurationBC returns the time.Duration value of the environmental variable varName if the env var is empty or not a valid duration string it will return 0, false.

GetFloat64 returns the float64 value of the environmental variable varName if the env var is empty or not a valid.

GetHTTPTimeouts returns the timeouts that should be used for a HTTP client from the environment or uses provided default values.

GetInt returns the int value of the environmental variable varName if the env var is not an int or empty it will return 0, false.

GetUint64 returns the uint64 value of the environmental variable varName if the env var is not an int or empty it will return 0, false.