convert uses of interface{} to any

Done via:
  find . -name "*.go" | xargs sed -i -E 's/interface\{\}/any/g'

PiperOrigin-RevId: 487033228

pkg/urpc/urpc.go

@@ -107,8 +107,8 @@ type filePayloader interface {
 
 // clientCall is the client=>server method call on the client side.
 type clientCall struct {
-	Method string      `json:"method"`
-	Arg    interface{} `json:"arg"`
+	Method string `json:"method"`
+	Arg    any    `json:"arg"`
 }
 
 // serverCall is the client=>server method call on the server side.
@@ -119,9 +119,9 @@ type serverCall struct {
 
 // callResult is the server=>client method call result.
 type callResult struct {
-	Success bool        `json:"success"`
-	Err     string      `json:"err"`
-	Result  interface{} `json:"result"`
+	Success bool   `json:"success"`
+	Err     string `json:"err"`
+	Result  any    `json:"result"`
 }
 
 // registeredMethod is method registered with the server.
@@ -211,7 +211,7 @@ type Stopper interface {
 // tolerate any object with non-conforming methods. Any non-confirming methods
 // will lead to an immediate panic, instead of being skipped or an error.
 // Panics will also be generated by anonymous objects and duplicate entries.
-func (s *Server) Register(obj interface{}) {
+func (s *Server) Register(obj any) {
 	s.mu.Lock()
 	defer s.mu.Unlock()
 
@@ -522,7 +522,7 @@ func NewClient(socket *unet.Socket) *Client {
 }
 
 // marshal sends the given FD and json struct.
-func marshal(s *unet.Socket, v interface{}, fs []*os.File) error {
+func marshal(s *unet.Socket, v any, fs []*os.File) error {
 	// Marshal to a buffer.
 	data, err := json.Marshal(v)
 	if err != nil {
@@ -570,7 +570,7 @@ func marshal(s *unet.Socket, v interface{}, fs []*os.File) error {
 }
 
 // unmarhsal receives an FD (optional) and unmarshals the given struct.
-func unmarshal(s *unet.Socket, v interface{}) ([]*os.File, error) {
+func unmarshal(s *unet.Socket, v any) ([]*os.File, error) {
 	// Receive a single byte.
 	r := s.Reader(true)
 	r.EnableFDs(maxFiles)
@@ -592,7 +592,7 @@ func unmarshal(s *unet.Socket, v interface{}) ([]*os.File, error) {
 
 	// Read the rest.
 	d := json.NewDecoder(io.MultiReader(bytes.NewBuffer(firstByte), s))
-	// urpc internally decodes / re-encodes the data with interface{} as the
+	// urpc internally decodes / re-encodes the data with any as the
 	// intermediate type. We have to unmarshal integers to json.Number type
 	// instead of the default float type for those intermediate values, such
 	// that when they get re-encoded, their values are not printed out in
@@ -613,7 +613,7 @@ func unmarshal(s *unet.Socket, v interface{}) ([]*os.File, error) {
 }
 
 // Call calls a function.
-func (c *Client) Call(method string, arg interface{}, result interface{}) error {
+func (c *Client) Call(method string, arg any, result any) error {
 	c.mu.Lock()
 	defer c.mu.Unlock()