+ * Returns: the ModestMailOperationQueue singleton
+ **/
+ModestMailOperationQueue* modest_singletons_get_mail_operation_queue (ModestSingletons *self);
+
+/**
+ * modest_singletons_get_window_mgr:
+ * @self:
+ *
+ * Gets the #ModestWindowMgr singleton instance. Don't use this
+ * function directly, use the modest-runtime function instead.
+ *
+ * Return value: the singleton instance of #ModestWindowMgr
+ **/
+ModestWindowMgr* modest_singletons_get_window_mgr (ModestSingletons *self);
+
+/**
+ * modest_singletons_get_protocol_registry:
+ * @self:
+ *
+ * Gets the #ModestProtocolRegistry singleton instance. Don't use this
+ * function directly, use the modest-runtime function instead.
+ *
+ * Return value: the singleton instance of #ModestProtocolRegistry