Update sklearn.js

source/sklearn.js

@@ -588,32 +588,32 @@ sklearn.Metadata = class {
     }
 
     constructor(data) {
-        this._map = new Map();
-        this._attributeCache = new Map();
+        this._types = new Map();
+        this._attributes = new Map();
         if (data) {
             const metadata = JSON.parse(data);
-            this._map = new Map(metadata.map((item) => [ item.name, item ]));
+            this._types = new Map(metadata.map((item) => [ item.name, item ]));
         }
     }
 
     type(name) {
-        return this._map.get(name);
+        return this._types.get(name);
     }
 
     attribute(type, name) {
         const key = type + ':' + name;
-        if (!this._attributeCache.has(key)) {
+        if (!this._attributes.has(key)) {
             const schema = this.type(type);
             if (schema && schema.attributes && schema.attributes.length > 0) {
                 for (const attribute of schema.attributes) {
-                    this._attributeCache.set(type + ':' + attribute.name, attribute);
+                    this._attributes.set(type + ':' + attribute.name, attribute);
                 }
             }
-            if (!this._attributeCache.has(key)) {
-                this._attributeCache.set(key, null);
+            if (!this._attributes.has(key)) {
+                this._attributes.set(key, null);
             }
         }
-        return this._attributeCache.get(key);
+        return this._attributes.get(key);
     }
 };