call_opt.go
func Meta(meta interface{}) CallOption {
	return callOptionFunc(func(r *Request) error {
		return r.SetMeta(meta)
	})
}
func Meta(meta interface{}) CallOption {
	return callOptionFunc(func(r *Request) error {
		return r.SetMeta(meta)
	})
}
func Meta ( meta interface { } ) CallOption { return callOptionFunc ( func ( r * Request ) error { return r . SetMeta ( meta ) } ) }
// Meta returns a call option which attaches the given meta object to
// the JSON-RPC 2.0 request (this is a Sourcegraph extension to JSON
// RPC 2.0 for carrying metadata).
Meta returns a call option which attaches the given meta object to the JSON - RPC 2 . 0 request ( this is a Sourcegraph extension to JSON RPC 2 . 0 for carrying metadata ) .