Refactor Chain function to use Middleware type

chain.go

@@ -3,7 +3,7 @@ package chi
 import "net/http"
 
 // Chain returns a Middlewares type from a slice of middleware handlers.
-func Chain(middlewares ...func(http.Handler) http.Handler) Middlewares {
+func Chain(middlewares Middlewares) Middlewares {
 	return Middlewares(middlewares)
 }
 
@@ -33,7 +33,7 @@ func (c *ChainHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 
 // chain builds a http.Handler composed of an inline middleware stack and endpoint
 // handler in the order they are passed.
-func chain(middlewares []func(http.Handler) http.Handler, endpoint http.Handler) http.Handler {
+func chain(middlewares Middlewares, endpoint http.Handler) http.Handler {
 	// Return ahead of time if there aren't any middlewares for the chain
 	if len(middlewares) == 0 {
 		return endpoint

chi.go

@@ -61,6 +61,11 @@ func NewRouter() *Mux {
 	return NewMux()
 }
 
+// middleware type alias (for chain.go) 
+type Middleware = func(http.Handler) http.Handler
+
+type Middlewares Middleware[]
+
 // Router consisting of the core routing methods used by chi's Mux,
 // using only the standard net/http.
 type Router interface {