Base64 read value as a base64 encoded string.

Boolean retrieve a boolean flag from the environment, checks each key in order first to parse successfully is returned.

returns the os.Environ or an empty slice if b is false.

Duration retrieves a time.Duration from the environment, checks each key in order first successful parse to a duration is returned.

format a environment variable in k=v.

see format.

see format.

Hex read value as a hex encoded string.

Int retrieve a integer flag from the environment, checks each key in order first to parse successfully is returned.

String retrieve a string value from the environment, checks each key in order first string found is returned.

retrieve a uint64 flag from the environment, checks each key in order first to parse successfully is returned.

format a boolean value to true/false strings.

set many keys to the same value.