type Client interface {
	//PullConfigs pull all configs from remote
	PullConfigs(serviceName, version, app, env string) (map[string]interface{}, error)
	//PullConfig pull one config from remote
	PullConfig(serviceName, version, app, env, key, contentType string) (interface{}, error)
	//PullConfigsByDI pulls the configurations with customized DimensionInfo/Project
	PullConfigsByDI(dimensionInfo, diInfo string) (map[string]map[string]interface{}, error)
	// PushConfigs push config to cc
	PushConfigs(data map[string]interface{}, dimensionInfo string) (map[string]interface{}, error)
	// DeleteConfigsByKeys delete config for cc by keys
	DeleteConfigsByKeys(keys []string, dimensionInfo string) (map[string]interface{}, error)
	//Watch get kv change results, you can compare them with local kv cache and refresh local cache
	Watch(f func(map[string]interface{}), errHandler func(err error)) error
}

type Options struct {
	ServerURI         string
	Endpoint          string
	ServiceName       string
	ApolloServiceName string
	Cluster           string
	Namespace         string
	App               string
	Env               string
	Version           string
	TLSConfig         *tls.Config
	TenantName        string
	EnableSSL         bool
	APIVersion        string
	AutoDiscovery     bool
	RefreshPort       string
	DimensionInfo     string
}