// WithHeader specifies a header in the HTTP request.
WithHeader specifies a header in the HTTP request.
// WithHeader specifies a header in the HTTP request .
func WithHeader(name string, values ...string) Option {
	return func(options *options) {
		options.header[name] = values
	}
}
func WithHeader ( name string , values ... string ) Option { return func ( options * options ) { options . header [ name ] = values } }
WithHeader specifies a header in the HTTP request.
WithHeader specifies a header in the HTTP request .