config/env.go
func (c *EnvConfig) Finalize() {
	if c.Blacklist == nil {
		c.Blacklist = []string{}
	}

	if c.Custom == nil {
		c.Custom = []string{}
	}

	if c.Pristine == nil {
		c.Pristine = Bool(false)
	}

	if c.Whitelist == nil {
		c.Whitelist = []string{}
	}
}
func (c *EnvConfig) Finalize() {
	if c.Blacklist == nil {
		c.Blacklist = []string{}
	}

	if c.Custom == nil {
		c.Custom = []string{}
	}

	if c.Pristine == nil {
		c.Pristine = Bool(false)
	}

	if c.Whitelist == nil {
		c.Whitelist = []string{}
	}
}
// Finalize ensures there no nil pointers.