-int dictExpand(dict *ht, unsigned long size);
-int dictAdd(dict *ht, void *key, void *val);
-int dictReplace(dict *ht, void *key, void *val);
-int dictDelete(dict *ht, const void *key);
-int dictDeleteNoFree(dict *ht, const void *key);
-void dictRelease(dict *ht);
-dictEntry * dictFind(dict *ht, const void *key);
-int dictResize(dict *ht);
-dictIterator *dictGetIterator(dict *ht);
+int dictExpand(dict *d, unsigned long size);
+int dictAdd(dict *d, void *key, void *val);
+int dictReplace(dict *d, void *key, void *val);
+int dictDelete(dict *d, const void *key);
+int dictDeleteNoFree(dict *d, const void *key);
+void dictRelease(dict *d);
+dictEntry * dictFind(dict *d, const void *key);
+void *dictFetchValue(dict *d, const void *key);
+int dictResize(dict *d);
+dictIterator *dictGetIterator(dict *d);