package camfish

import "iter"

// Config represents key/value data.
type Config interface {
	Get(key string) string
	GetAll(key string) iter.Seq2[int, string]
}

// MutableConfig is like Config, but can be changed. These methods should be
// assumed unsafe for use by multiple concurrent goroutines. A MutableConfig
// must not be retained nor shared. These methods must not be called while
// iterating over All or GetAll.
type MutableConfig interface {
	Config
	Add(key, value string)
	Del(key string)
	Set(key, value string)
}