add provide

ihipop · ihipop · commit cff4337fca37 · 2019-04-01T12:02:04.000+08:00
diff --git a/composer.json b/composer.json
@@ -14,6 +14,10 @@
         "psr/simple-cache": "^1.0",
         "psr/cache": "^1.0"
     },
+    "provide": {
+//        "psr/cache-implementation": "1.0",
+        "psr/simple-cache-implementation": "1.0",
+    },
     "autoload": {
         "psr-4": {
             "ihipop\\PsrNullCache\\": "src/"
