config

type Getter interface {
	Get(key string) interface{}
	GetString(key string) string
	GetBool(key string) bool
	GetInt(key string) int
	IsSet(key string) bool
	UnmarshalKey(key string, target interface{}) error
}

type Reloader interface {
	Reload(Getter) error
}

type Setter interface {
	SetDefault(key string, value interface{})
	BindEnv(key string)
	BindFlag(key string, flagName string)
	StringFlag(name, shorthand string, value string, usage string)
	BoolFlag(name, shorthand string, value bool, usage string)
	IntFlag(name, shorthand string, value int, usage string)
}

type Validator interface {
	Validate(Getter) error
}