GetCommaSeparatedStringEnvVar returns the given env var key's value split by comma or the default values.

GetDurationEnvVar returns the given env var key's value as a Duration or the default value.

GetStringEnvVar returns the given env var key's value or the default value.

GetUint64EnvVar returns the given env var key's value as a uint64 or the default value.

GetUintEnvVar returns the given env var key's value as a uint or the default value.