transport

type Client interface {
	Sender
	// Secure tells whether the connection is secure or not.
	Secure() bool
	// Scheme returns the connection protocol the client uses.
	Scheme() string
	// TLSConfig returns any TLS configuration the client uses.
	TLSConfig() *tls.Config
}

type Sender interface {
	// Do sends request to a remote endpoint.
	Do(*http.Request) (*http.Response, error)
}